CUBRID 9.0 Release Notes¶

MERGE statement (CUBRIDSUS-7080)¶

Add the MERGE statement that is used to select rows from one or more sources and update or insert them to a single table or view. You can specify the condition to determine whether to update or insert rows to the target table or view.

MERGE INTO target_table tt USING source_table st
ON (st.a=tt.a AND st.b=tt.b)
    WHEN MATCHED THEN UPDATE SET tt.c=st.c
    WHEN NOT MATCHED THEN INSERT VALUES (st.a, st.b, st.c);

Analytic functions using OVER clause (CUBRIDSUS-6112)¶

Add analytic functions to aggregate value based on the result of rows. The added analytic functions are as follows:

AVG, COUNT, MAX, MIN, RANK, ROW_NUMBER, STDDEV, STDDEV_POP, STDDEV_SAMP, SUM, VAR_POP, VAR_SAMP, VARIANCE, and DENSE_RANK.

To obtain a variety of statistics from a specific row set, a new analytic clause called OVER is used together with some existing aggregate functions.

The following is an example of outputting the number of yearly acquired gold medals by countries whose nation_code in demodb starts with 'AU', and the average sum of accumulated gold medals up to a specific year.

SELECT host_year, nation_code, gold, AVG(gold) OVER (PARTITION BY nation_code ORDER BY host_year) avg_gold
FROM participant WHERE nation_code LIKE 'AU%';

UPDATE JOIN and DELETE JOIN statements (CUBRIDSUS-5646)¶

Add the UPDATE JOIN and DELETE JOIN statements that are used to update or delete one or more tables.

UPDATE a_tbl INNER JOIN b_tbl ON a_tbl.id=b_tbl.rate_id
SET a_tbl.charge = a_tbl.charge * (1 + b_tbl.rate)
WHERE a_tbl.charge > 900.0;

DELETE a, b FROM tbl1 a INNER JOIN tbl2 b
WHERE a.idx=b.p_idx AND b.p_idx=5 AND b.flag=1

ENUM type¶

Add the ENUM type that is defined with enumeration type character string constants.

CREATE TABLE tbl (
    color ENUM('red', 'yellow', 'blue')
);

INSERT into tbl values ('yellow'), ('red'), (2), ('blue');
SELECT color FROM tbl ORDER BY color ASC;

color
======================
red
yellow
yellow
blue

ORDER BY in the UPDATE statement (CUBRIDSUS-6605)¶

Make it possible to update in order according to the ORDER BY clause in the UPDATE statement. If the UPDATE statement is executed in the query shown below, the value of 'b' will be updated in the descending order of the size of the value of the column 'a'.

CREATE TABLE t1 (a int, b int);
INSERT INTO t1 VALUES (1,1), (2,2),(3,3),(4,4);
SET @tmp=100;
UPDATE t1 SET b=(@tmp:=@tmp+1) ORDER BY a DESC;

VALUES clause (CUBRIDSUS-7553)¶

Add the VALUES clause used to create a constant table temporarily instead of an actual table. Although you can get the same result by connecting the UNION ALL statement but you can do it much more easily by using the VALUES clause. It is usually used in the form of joining with another table in the SELECT, UPDATE, and DELETE queries.

VALUES (1 AS col1, 'first' AS col2), (2, 'second'), (3, 'third'), (4, 'forth');

SELECT 1 AS col1, 'first' AS col2
UNION ALL
SELECT 2, 'second'
UNION ALL
SELECT 3, 'third'
UNION ALL
SELECT 4, 'forth';

SHOW CREATE TABLE statement (CUBRIDSUS-6996)¶

Add the SHOW CREATE TABLE statement used to output the SQL statement that creates a table.

SHOW CREATE TABLE tbl;

TABLE CREATE TABLE
============================================
'tbl' 'CREATE TABLE [tbl] ([id] INTEGER DEFAULT 0 NOT NULL, [phone] CHARACTER VARYING(10), CONSTRAINT [pk_tbl_id] PRIMARY KEY ([id]))'

Partition PROMOTE statement (CUBRIDSUS-7629)¶

Add the PROMOTE statement to promote some partitions specified by user from a partitioned table to a general table.

CREATE TABLE t(i int) PARTITION BY LIST(i) (
    partition p0 values in (1, 2, 3),
    partition p1 values in (4, 5, 6),
    partition p2 values in (7, 8, 9),
    partition p3 values in (10, 11, 12)
);

ALTER TABLE t PROMOTE PARTITION p1, p2;

ALTER statement to change the owner of tables, views, triggers and stored procedures (CUBRIDSUS-7922)¶

Add the ALTER statement to specify the owner of tables, views, triggers, and stored procedures.

ALTER TABLE test_tbl OWNER TO PUBLIC;
ALTER VIEW test_view OWNER TO PUBLIC;
ALTER TRIGGER test_trigger OWNER TO PUBLIC;
ALTER FUNCTION test_function OWNER TO PUBLIC;
ALTER PROCEDURE test_procedure OWNER TO PUBLIC;

LEVEL column for CONNECT BY clause (CUBRIDSUS-7526)¶

Make it possible to use a LEVEL column in a CONNECT BY clause.

SELECT LEVEL FROM db_root CONNECT BY LEVEL <= 10;

OFFSET keyword for a LIMIT clause (CUBRIDSUS-7439)¶

Make it possible to use the OFFSET keyword in a LIMIT clause. The following two queries execute the same result.

SELECT * FROM tab LIMIT 2, 1;
SELECT * FROM tab LIMIT 1 OFFSET 2;

INET_ATON and INET_NTOA functions (CUBRIDSUS-8230)¶

Add the INET_ATON and INET_NTOA functions. The INET_ATON function returns numeric value when an IP address is entered, while the INET_NTOA function returns an IP address value when numbers are entered.

SELECT INET_ATON('192.168.0.10');

inet_aton('192.168.0.10')
============================
3232235530

SELECT INET_NTOA(3232235530);

inet_ntoa(3232235530)
======================
'192.168.0.10'

Character set and collation of multiple countries (CUBRIDSUS-7629)¶

Support the locale (character set and collation) of multiple countries to support multinational languages. The locales added to CUBRID are: English (en_US), German (de_DE), Spanish (es_ES), French (fr_FR), Italian (it_IT), Japanese (ja_JP), Cambodian (km_KH), Korean (ko_KR), Turkish (tr_TR), Vietnamese (vi_VN), and Chinese (zh_CN).

Globalization related system parameters have also been added.

Parameter Name	Description
intl_check_input_string	Sets whether to check whether the character string is entered appropriately to the character set used. Default value no.
string_max_size_bytes	Defines the maximum size of bytes used as a character string argument in a string function or operation. Default value: 1048576 bytes
unicode_input_normalization	Sets whether to store unicode to enter in a combined form. Default value: yes
unicode_output_normalization	Sets whether to output stored unicode into separated code. Default value: no.
intl_date_lang	Sets whether to use the localized date/time format for the character string as an argument in the function to convert a string into the format of date/time. Default value: CUBRID_LANG environment variable
intl_number_lang	Sets whether to apply number format to input or output strings in the functions that covert character strings into numbers or numbers into character strings. Default value: CUBRID_LANG environment variable

intl_check_input_string, a parameter to set whether to check the validity of a character set, has also been added.

single_byte_compare, intl_mbs_support parameter is not used any longer.

Middleware for database sharding (CUBRIDSUS-4996)¶

Provide CUBRID SHARD, the middleware for easy access to database horizontally partitioned to multiple devices. The features of CUBRID SHARD are as follows:

• As the form of middleware to minimize the change of existing applications, CUBRID SHARD enables transparent access to sharded database through commonly used JDBC and CCI interface, which is CUBRID C API.
• In this functionality, a hint is added to an existing query to indicate a shard in which the query would be executed.
• It can be composed also with MySQL as backend shard DB as well as with CUBRID.
• Guarantees the unique characteristics of certain transactions.

Filtered index (CUBRIDSUS-6112)¶

Support the filtered index that includes a specific criterion. As only part of an index that meets some condition is used, it is also called partial index. As a filtered index is used to index only some rows that meet some condition, a burden of index update can be relieved and the search performance can be improved thanks to a smaller search range.

CREATE UNIQUE INDEX bugs_per_dev ON bugs(Author) WHERE Closed = 0;

SELECT * FROM bugs
WHERE Author= 'madden' AND Subject LIKE '%fopen%' AND Closed = 0
USING INDEX idx_open_bugs;

max_filter_pred_cache_entries parameter has also been added to set the maximum number of filtered index expressions to be cached in the memory. The default value is 1000.

Function-based index (CUBRIDSUS-6112)¶

Support a function-based index that contains the result value of a specific function. It is used to sort or search data by using a specific function.

CREATE INDEX idx_upper_post ON posts_table(UPPER(keyword));

Index skip scan (CUBRIDSUS-5646)¶

Add the index skip scan (ISS) feature that allows the later part of an index to be used when the condition (usually =) is not met by the first column but by the following column of the index.

CREATE INDEX idx_t_gen_name on t (gender, name);
SELECT * from t WHERE name = 'SMITH';

[JDBC] Add getDatabaseMajorVersion() and getDatabaseMinorVersion() (CUBRIDSUS-7530)¶

The getDatabaseMajorVersion() and getDatabaseMinorVersion() methods of the JDBC DatabaseMetaData interface return major version number and minor version number, respectively, when called.

[CCI] Function to convert to escape character string (CUBRIDSUS-8940)¶

Add cci_escape_string() to convert to escape character strings used in CUBRID queries.

[CCI] connection function using error message output buffer as input argument (CUBRIDSUS-5633)¶

Add cci_connect_ex() and cci_connect_with_url_ex(), which are connection functions using error message output buffer as an input argument.

As previous connection functions returned a single error code when an error occurred, users were unable to check specific errors. After this modification, users can check specific error codes through error message buffer.

T_CCI_ERROR error;
connection = cci_connect_ex ("localhost", 33000, "demodb", "dba", "pwd", &error);
connection = cci_connect_with_url_ex ("cci:cubrid:localhost:33000:demodb:::", "dba", "pwd", &error);

Add and delete columns in the HA catalog table (CUBRIDSUS-5456)¶

Add columns to the db_ha_apply_info table to prevent inconsistent replication due to re-reflection of replication logs and provide more detailed information on the replication log reflection status.

Added Columns	Description
committed_lsa_pageid	Page id of the commit log lsa reflected last The log before last_committed_lsa is not re-reflected when applylogdb is restarted.
committed_lsa_offset	Offset of the commit log lsa reflected last The log before last_committed_lsa is not re-reflected when applylogdb is restarted.
committed_rep_pageid	Page id of the last replication log lsa Checks whether the reflection of replication has been delayed.
committed_rep_offset	Offset of the replication log lsa reflected last Checks whether the reflection of replication has been delayed.
append_lsa_page_id	Page id of the last lsa of replication log in the last reflection of replication. Stores the append_lsa of the replication log header being processed at applylogdb when replication is reflected. Checks whether there was a delay when replication log was reflected
append_lsa_offset	Offset of the last lsa of replication log in the last reflection of replication. Stores the append_lsa of the replication log header being processed at applylogdb when replication is reflected. Checks whether there was a delay when replication log was reflected
eof_lsa_page_id	Page id of the eof lsa of replication log in the last reflection of replication. Stores the eof_lsa of the replication log header being processed at applylogdb when replication is reflected. Checks whether there was a delay when replication log was reflected
eof_lsa_offset	Offset of the eof lsa of replication log in the last reflection of replication. Stores the eof_lsa of the replication log header being processed at applylogdb when replication is reflected. Checks whether there was a delay when replication log was reflected
final_lsa_pageid	Page id of the log lsa processed last at applylogdb Checks whether the reflection of replication has been delayed.
final_lsa_offset	Offset of the log lsa processed last at applylogdb Checks whether the reflection of replication has been delayed.
required_page_id	Page id of the smallest log not to be deleted by log_max_archives parameter and the page number of the log to begin to reflect replication
required_page_offset	Offset of the log page to start to reflect replication
log_commit_time	The reflected time of the last commit log

The following columns have been deleted.

Deleted Deleted Columns	Description
page_id	Page of the replication log committed in the slave database
offset	Offset of the replication log committed in the slave database

Add columns to the index catalog tables and views¶

With the new features of filtered index and function-based index, columns have been added to the following catalog tables and views.

The following columns have been added to the _db_index catalog table.

Added Columns	Description
filter_expression	Conditions of a filtered index
have_function	If function-based index = 1, if not = 0

The following columns have been added to the DB_INDEX catalog view.

Added Columns	Description
filter_expression	Conditions of a filtered index
have_function	If function-based index = 'YES', If not = 'NO'

The following column has been added to the _db_index_key catalog table.

Added Column	Description
func	The function expression of the function-based index

The following column has been added to the DB_INDEX_KEY catalog view.

Added Column	Description
func	The function expression of the function-based index

Add collation tables and views¶

The following tables and views have been added for the collation function for globalization.

The _db_collation table has been added.

Added Columns	Description
coll_id	Collation ID
coll_name	Collation name
charset_id	Character set ID
built_in	Whether to include collation when installing the product (0: Not included, 1: Included)
expansions	Whether to support expansion (0: Not supported 1: Supported)
contractions	Whether to support contraction (0: Not supported 1: Supported)
checksum	Checksum of collation files
uca_strength	Weight strength

DB_COLLATION view has been added.

Added Column	Description
coll_id	Collation ID
coll_name	Collation name
charset_name	Character set name
is_builtin	Whether to include it when installing the product
has_expansions	Whether to include expansions
contractions	Whether to include contractions
uca_strength	Weight strength (NOT APPLICABLE, PRIMARY, SECONDARY, TERTIARY, QUATERNARY, IDENTITY, UNKNOWN)

Session parameter concept to some of client/server system parameters (CUBRIDSUS-8193)¶

Added the session parameter concept for some client/server system parameters. If a parameter value of one system, client or server system, is changed, the same value will be applied to both systems. The added session parameters are:

default_week_format, string_max_size_bytes, return_null_on_function_errors, alter_table_change_type_strict, plus_as_concat, compat_numeric_division_scale, intl_number_lang, and intl_date_lang

Multi-range optimization frequency to the execution statistics information (CUBRIDSUS-6163)¶

Added the item of the number of multi-range optimizations to the execution statistics information checked through the cubrid statdump utility or the SHOW EXEC STATISTICS ALL.

Must specify the name when adding, deleting or changing indexes (CUBRIDSUS-6112)¶

Change to specify the name always when adding, deleting and chancing indexes. An error will occur when the name of the index is omitted.

Get result values based on the time of query execution when functions, such as SYSDATE and USER, are specified as the default attribute of the column (CUBRIDSUS-4378)¶

In the previous version, when the SYSTIMESTAMP, SYSDATE, SYSDATETIME, and USER functions were specified as a DEFAULT constraint value, the DEFAULT value was fixed to the result value of the function based on when the table was created. In the new version, the result value will be calculated whenever a query is executed.

CREATE TABLE t (ID int, col TIMESTAMP DEFAULT SYSTIMESTAMP);
ALTER TABLE t add column (uid STRING DEFAULT USER);
INSERT INTO t(ID) VALUES(1); -- The col value will be a result value at the point of query execution.

Not allow the cases in which the input argument of MINUTE, HOUR, SECOND, and TIME_TO_SEC functions is not a character string of time type (CUBRIDSUS-7535)¶

When the time type character string is an input argument as in the case of MINUTE, HOUR, SECOND, and TIME_TO_SEC functions, the date type character string, such as "YYYY-MM-DD" is not allowed any longer.

// The queries below are not allowed after modification.
SELECT TIME_TO_SEC('2010-01-01');
CREATE TABLE foo(col TIME DEFAULT '2000-01-01');

Error when time invalid as time type value is bound (CUBRIDSUS-7159)¶

If invalid time, such as "00:00:-1", is bound as the TIME type value, it was accepted as "00:00:00", ignoring the number "-1", in the previous version, but this version has been changed to output an error in this case.

Return NEXTVAL from "set value" when the starting value of the serial is changed (CUBRIDSUS-8157)¶

If the starting value of the serial is changed, the NEXTVAL of the serial was returned from "set value + 1." The new version has been changed to return from the "set value."

ALTER SERIAL s1 START WITH 10;
SELECT s1.NEXTVAL;
10

Store the value up to the specified length of the character type when the length of altered column from numeric to character exceeds the length of numeric value (CUBRIDSUS-8009)¶

Previously, when ALTER TABLE ... CHANGE COLUMN... was executed to change a column into a character type column shorter than the length of the numeric value stored in the numeric type column, the value of the column was processed as an empty string when it exceeded the specified length of the character type column. Now the value will be stored up to the specified length.

CREATE TABLE t1 (i1 INT);
INSERT INTO t1 VALUES (1),(-2147483648),(2147483647),(-2147483648),(2147483647);
ALTER TABLE t1 CHANGE i1 s1 CHAR(4);

ER_INTERRUPTED error when interrupt occurs during index scan in descending order (CUBRIDSUS-7316)¶

In the previous version, if an interrupt occurs during index scan in descending order, ER_DESC_ISCAN_ABORTED error was returned. This has been changed to return the ER_INTERRUPTED error.

Change display of string types in "SHOW COLUMNS FROM" statement (CUBRIDSUS-8533)¶

In "SHOW COLUMNS FROM" statement, character strings that were shown as STRING(n) and VARBIT(n) have been changed to VARCHAR(n) and BIT VARYING(n) respectively.

In "SHOW COLUMNS" statement, remove single quotation marks included in the output of the default value of a specific type(CUBRIDSUS-5921)¶

When SHOW COLUMNS is executed to output the table information, single quotation marks were included in the output of the DEFAULT value of CHAR or DATETIME. The new version has been changed to exclude the single quotation marks.

After connecting from applications to DB as a DBA, being able to re-connect it even with an incorrect password (CUBRIDSUS-7192)¶

In the previous version, when you connected to a DB as a DBA from applications and then tried to reconnect to it as a DBA or another user, you were able to connect to it even with an incorrect password. This problem has been fixed.

Change the action of the login() method (CUBRIDSUS-6307)¶

In the previous version, if you executed CSQL Interpreter as a DBA, you were allowed to execute login() continuously as another user without typing a password. In the new version, if you execute login() as not a DBA but another user, you are not allowed to execute login() as another user without typing a password.

% csql -u dba demodb
csql> CALL login ('test1', '') ON CLASS db_user; -- Since dba do login() for test1, it is allowed to check without password.
csql> CALL login ('test2', '') ON CLASS db_user; -- Since dba do login() for test1 and login() for test2, it is not allowed to check without password.

[JDBC, CCI] Change CURSOR HOLDABILITY to run as a default (CUBRIDSUS-8609)¶

When the SELECT query is executed in JDBC and CCI, Cursor Holdability has been changed to run as a default. Therefore, even when a commit is executed during cursor fetch, you can continue the fetch as the cursor will be maintained. You must close the cursor after using it.

[JDBC] Change to return a NUMERIC type name as NUMERIC instead of DECIMAL (CUBRIDSUS-8387)¶

In the previous version, the DatabaseMetaData.getColumns() method returned NUMERIC type names as DECIMAL. Now it returns them as NUMERIC.

// An error such as "Caused by: org.hibernate.HibernateException: Wrong column type in mytbl_map for column col2. Found: decimal, expected: numeric(19,0)" occurred if a column with NUMERIC type is specified when configuring mapping between entities by using Hibernate in an earlier version which has not been fixed.

@ManyToMany
@JoinTable(name="mytbl",joinColumns={@JoinColumn(name="col1", columnDefinition="varchar(255)")},inverseJoinColumns={@JoinColumn(name="col2", columnDefinition="numeric(19,0)")})

private Set<MyGroup> accessMyGroups;

[JDBC] Change JAVA return type of the getColumnClassName() method for NUMERIC type columns (CUBRIDSUS-7532)¶

Change the ResultSetMetaData.getColumnClassName() method to return java.math.BigDecimal instead of the previous java.lang.Double for NUMERIC type columns.

[CCI] Change the unit of lock timeout value returned by the cci_get_db_parameter() function to millisecond (CUBRIDSUS-7538)¶

Change the unit of the lock timeout value returned by the cci_get_db_parameter() function from second to millisecond.

[CCI] Remove the autocommit attribute used for the URL character string of the cci_connect_with_url() function (CUBRIDSUS-7306)¶

Remove the autocommit attribute used for the URL character string of the cci_connect_with_url() function.

Change replica nodes to always delete archive log (CUBRIDSUS-8556)¶

To delete archive logs at replica nodes, you had to change the value of the system parameter force_remove_log_archives to yes. If the value was not set as YES, problems could occur as unnecessary archive logs were accumulated. CUBRID 9.0 Beta has been changed for replica nodes to always delete archive logs regardless of the set value of the force_remove_log_archives parameter.

Modify to set the initial value of the system parameter that sets the maximum number of archive log files to 0 in installation (CUBRIDSUS-6603)¶

In installing CUBRID, "log_max_archives=0" has been added to cubrid.conf.

If the value of log_max_archivies is 0, archive log files do not occupy the disk space as they are not kept, but when a media failure occurs, it could be impossible to restore the database back to the desired time. To restore a database in case of a media failure, this parameter value should be set properly considering a backup cycle.

Modify the memory usage of the replication log reflection process not to exceed 500MB (CUBRIDSUS-6068)¶

If the memory usage of the replication log reflection process exceeds 500mb in the HA environment, replication inconsistency could occur. Now the memory usage of the replication log reflection process has been changed not to exceed 500mb. Please note that if you set the ha_apply_max_mem_size value of cubrid_ha.conf as 500 or higher in the previous version, you must change the value to 500 or less after upgrade to 9.0 Beta or higher.

Change the range of error codes (CUBRIDSUS-7666)¶

Changed the range of error codes for CUBRID application server (CAS), broker server, CCI driver and JDBC driver. CAS uses error codes from -10000 to -10999, broker servers from -11000 to -11999, CCI from -20000 to -20999, and JDBC from -21000 to -21999.

Change the output format of CAS and lockdb utility when the lock_timeout value is -1 or 0 (CUBRIDSUS-8915)¶

When the value of the system parameter lock_timeout is -1 (infinite wait) or 0 (no wait), the output format of CAS log and lockdb utility has been changed simply to output "Infinite wait" and "No wait" respectively.

Change the UPDATE statements specifying different constants in a SET clause not to be cached separately to query plan cache (CUBRIDSUS-8511)¶

In the previous version, if the constant value specified in the SET clause of UPDATE statements was different, the queries were regarded differently at the query plan cache despite having the same pattern. The new version allows a single pattern to be maintained by automatically replacing these constants with host variables.

Change the queries of the same pattern with ORDER BY and LIMIT clauses not to be cached separately as different plan to the query plan cache (CUBRIDSUS-8813)¶

Queries of the same pattern with ORDER BY and LIMIT clauses have been chanced to be stored to the query plan cache as the same plan despite different constant values.

Improve the performance of the execution of the INSERT ON DUPLICATE KEY UPDATE statement (CUBRIDSUS-8287)¶

Improve the problem that would reduce the speed of the execution of the INSERT ON DUPLICATE KEY UPDATE statement when the statement contains two or more unique keys, including the primary key, in the target table.

CREATE TABLE x (a INT PRIMARY KEY, b INT, c INT, d INT, UNIQUE(b), UNIQUE(c));
CREATE SERIAL s;

INSERT INTO x VALUES (s.NEXT_VALUE, 0, 0, 0) ON DUPLICATE KEY UPDATE d = d+1;

Improve the performance of covering index scan (CUBRIDSUS-7466)¶

Improve the performance of lock escalation (CUBRIDSUS-5698)¶

Improve the performance of the lock escalation that converts record locks into table lock when the number of record locks reaches a certain level. According to a test in which one million records are entered to a table with 100 partitions with the lock_escalation parameter value being 5000, the improved lock escalation is 3.5 times faster than before.

Inconsistent data in rollback with regard to key lock and improved the performance of DML (CUBRIDSUS-7080)¶

Fix the problem of data inconsistency that could occur in the rollback of a INSERT task for a row with an index by modifying the key locking method and improved the performance of the execution of INSERT, DELETE and SELECT for a row with an index.

Improve the performance of the execution of the UNION ALL query statement (CUBRIDSUS-8130)¶

Improve the performance by not copying the intermediate result row of the earlier query statement but reusing it when generating the result of the UNION ALL query statement.

// In the example below, the more number of tl tables will result in more improvement by modification.
SELECT * FROM t1 UNION ALL SELECT * FROM t2;

Improve the performance of DATE_ADD() (CUBRIDSUS-7464)¶

It took a long time to finish CREATE when DROP and CREATE tables were invoked repeatedly (CUBRIDSUS-7288)¶

Previously, the time to finish CREATE would increase when DROP and CREATE tables were invoked repeatedly. This problem has been fixed. For reference, this problem could be avoided by configuring the REUSE_OID option, as in the example below, in the previous version.

CREATE TABLE reuse_tbl (a INT PRIMARY KEY) REUSE_OID

The execution time was gradually increasing when INSERT and DELETE were executed repeatedly (CUBRIDSUS-7654)¶

Fixed a problem in which the execution time gradually increased when INSERT and DELETE were executed repeatedly.

Improve the performance of the execution of the DESC, SHOW INDEX and SHOW COLUMNS statements (CUBRIDSUS-5868)¶

The access performance, including INSERT, markedly decreased after frequent execution of TRUNCATE statements (CUBRIDSUS-6499)¶

Fix a problem in which the INSERT speed markedly decreased after frequent execution of TRUNCATE statements.

Memory leak when UNION found only one record exceeding the page size of the database (CUBRIDSUS-7158)¶

Fix a problem in which the memory would leak when the UNION query found only one overflow record exceeding the page size of the database. The UNION ALL query has no memory leak.

Volume usage of INSERT dramatically incremented after duplicate record values increased in a single index key (CUBRIDSUS-8375)¶

Fix a problem in which, when overflow OID records were generated due to many duplicate record values in a single index key, volume usage rapidly increased because keys smaller than the relevant key were always entered to a new page.

Some spaces were unable to be reused after defining two or more foreign keys in the same column and dropping the table (CUBRIDSUS-8256)¶

Fixed a problem in which some spaces were unable to be reused after defining two or more foreign keys only with a different name in a single column and dropping the table.

CREATE TABLE foo (a INT, PRIMARY KEY (a));
CREATE TABLE bar (a INT,
    CONSTRAINT con1 FOREIGN KEY(a) REFERENCES foo (a),
    CONSTRAINT con2 FOREIGN KEY(a) REFERENCES foo (a));

-- INSERT records
...
DROP TABLE bar;
DROP TABLE foo;

Memory usage of the server process dramatically incremented when a large amount of records were inputted through the INSERT ... SELECT statement (CUBRIDSUS-8736)¶

Fix a problem in which the memory usage of the server process rapidly incremented when a large amount of records (e.g., over 2 million records) were inputted by using the INSERT ... SELECT statement.

Error when a CONCAT_WS function using a query or a function as an argument was entered as the value of the INSERT statement (CUBRIDSUS-6206)¶

Fixed the "ERROR: Cannot evaluate ' concat_ws('a', cast( SYS_DATE as varchar))'" error that occurred when a CONCAT_WS function using a query or a function as an argument was entered as the value of the INSERT statement.

INSERT INTO tbl VALUES (1,concat_ws('a',SYS_DATE()));

Took a long time to execute a query with a nested subquery in the OR clause (CUBRIDSUS-6031)¶

Fixed a problem in which it took a long time to execute a query with a subquery in the OR clause.

SELECT col2 FROM tab0
WHERE (A AND B) OR (col3 IN (SELECT i FROM t WHERE X AND Y OR Z AND W) AND D);

DELETE FROM ALL statement was unable to delete the LOB file (CUBRIDSUS-5596)¶

Fixed an error in which, when deletion was executed with regard to the inheritance hierarchy through the DELETE FROM ALL statement, the LOB file of the relevant table and that of the tables that inherit it were not deleted.

DELETE FROM ALL parent_tbl;

Optimize the temporary volume usage in creating an index (CUBRIDSUS-5528)¶

Modify not to use temporary volume more than necessary by returning the pages not used any more in the process of creating an index.

Optimize the temporary temp volume size (CUBRIDSUS-5639)¶

Modify not to create a volume larger than necessary when adding a temporary temp volume.

Generic volume was created under certain situations despite free space on the index volume (CUBRIDSUS-5595)¶

Previously, when the free space of the index volume file with the largest free space was smaller than 25% of the entire space required to create an index, the index volume was not used but the generic volume was created. This problem has been fixed.

File I/O sync. error message was outputted erroneously even in normal situations in the background archive log file (CUBRIDSUS-8163)¶

Fix a problem in which the file I/O sync. error message (error code: -599) was outputted even in normal situations in the background archive log file. An I/O error occurred while synchronizing state of volume "/home/cubrid/database/testdb/testdb_lgar_t".... Bad file descriptor

UPDATE statement of other transactions waited long due to the execution of the UPDATE STATISTICS statement (CUBRIDSUS-6981)¶

Modify not to maintain the latch for the index page during the execution of the UPDATE STATISTICS statement to prevent other transactions from waiting long.

Support YYYYMMDDH format as an input argument in the Date/Time function (CUBRIDSUS-8622)¶

Modify to support the YYYYMMDDH format as an input argument in the Date/Time functions, such as TIME and TO_DATETIME.

SELECT TIME('1104209');

time('1104209')
======================
'09:00:00'

SELECT TO_DATETIME('1104209','YYMMDDH');

to_datetime('1104209', 'YYMMDDH', 'en_US')
=============================================
09:00:00.000 AM 04/20/2011

ADDTIME function returned incorrect results (CUBRIDSUS-8568)¶

Fix a problem in which the ADDTIME function returned incorrect results.

SELECT ADDTIME('2012-02-02','9:9:9');

Overflow error occurred when % operation, BIT_AND function or BIT_OR function was executed to a column storing the minimum value of INT type (CUBRIDSUS-6203)¶

Fix a problem in which the "ERROR: Overflow occurred in ..." error occurred when % operation, BIT_AND function or BIT_OR function was executed to a column storing -2147483648, the minimum value of the INT type.

INSERT INTO tbl VALUES (-2147483648);
SELECT i%1009 FROM tbl;
SELECT BIT_AND(i) FROM tbl;

TRIM function outputted incorrect results (CUBRIDSUS-6591)¶

Fix an error in which the TRIM function, which is an SQL function, deleted one more character than the character string specified to be deleted. As in the following example, when "foo" is TRIMMED from "foook", "ok" should be outputted.

SELECT TRIM('foo' FROM 'foook');

Only small character table names were recognized as an input argument of the INDEX_CARDINALITY function (CUBRIDSUS-6264)¶

Fix an error in which only small character table names were recognized as an input argument of the INDEX_CARDINALITY function.

Error when executing queries with only the CHAR type input argument of the CONCAT and CONCAT_WS functions (CUBRIDSUS-6524)¶

Fix a problem in which query execution failed with the message "ERROR: No error message available." when the input arguments of the CONCAT and CONCAT_WS functions consisted of only CHAR type arguments.

CREATE TABLE t1 (a int , b char (20) );
INSERT INTO t1 VALUES (-1, '');
--below statement will throw "ERROR: No error message available." message.

SELECT concat(b) FROM t1;

Error when executing the CLOB_TO_CHAR function (CUBRIDSUS-6520)¶

Fix a problem in which query execution failed with the message "ERROR: External file "xxxx" was not found." when CLOB_TO_CHAR() was executed after the execution and commit of the REPLACE statement to scan a unique index to a table with a CLOB column.

SELECT id, CLOB_TO_CHAR(text) FROM tbl ORDER BY id;

Error when executing a query with the DATE type input argument of the TIMEDIFF function (CUBRIDSUS-8692)¶

Fix a problem in which query execution failed with the message "ERROR: Conversion error in time format." when the input argument of the TIMEDIFF function was DATE type.

SELECT TIMEDIFF(TO_DATE('2012-12-2'), TO_DATE('2012-11-2'));

A smaller join result when the CONCAT_WS function was a condition of LEFT OUTER JOIN (CUBRIDSUS-6590)¶

In the previous version, when the CONCAT_WS function was a condition of the LEFT OUTER JOIN, a smaller join result was outputted because the result value of the function was always regarded as NULL when even a single input argument value of the CONCAT_WS function was NULL due to the error in the process of optimizing the LEFT OUTER JOIN query. This problem has been fixed.

SELECT * FROM t1 LEFT JOIN t2 ON t1.id = t2.id WHERE CONCAT_WS(' ', t1_name, t2_name) LIKE '%In%';

Server would be abnormally terminated when using the INTERVAL value of the DATE_ADD function as a host variable (CUBRIDSUS-7610)¶

Fix a problem in which the server was abnormally terminated during a query was executed if the INTERVAL value of theDATE_ADD, which is an SQL function, was used as a host variable when the query was prepared. In the previous version, only the INTERGER was available as the type of the input value according to the INTERVAL unit of the DATE_ADD function. Now you can also use VARCHAR.

PREPARE s FROM 'SELECT DATE_ADD(?, INTERVAL ? YEAR_MONTH)';
EXECUTE s USING '2010-01-01', 1;
EXECUTE s USING '2010-01-01', '1-1';

Queries with DISTINCTROW in the argument of the aggregate function were not executed (CUBRIDSUS-7414)¶

Fix a problem in which the query was not executed with the "Syntax error: unexpected 'DISTINCTROW'" message when the argument of the aggregate function contained DISTINCTROW.

Query execution failed while binding value when all the arguments were a host variable in some SQL functions (CUBRIDSUS-7521)¶

Fix a problem in which, when all the arguments were a host variable in some SQL functions, such as NULLIF, LEAST, and GREATEST, query execution failed because value was bound and attempted to be typecast to DOUBLE.

preStmt = conn.prepareStatement("select nullif (?, ?)");
preStmt.setString(1, "A");
preStmt.setString(2, "a");
rs = preStmt.executeQuery();

Error when executing the DECODE function that omitted the default argument in the PREPARE Statement (CUBRIDSUS-9134)¶

Fix a problem in which query execution failed with the message "ERROR: Attribute "val" cannot be made NULL." when the third input argument to specify the DEFAULT value was omitted in the execution of the DECODE function in the PREPARE statement.

PREPARE stmt1 FROM 'UPDATE foo SET del_ts = 100, val=DECODE(name,?,val + ?) WHERE name IN (?)';
EXECUTE stmt1 USING 'seo', 1, 'seo';

Error when executing a query in which the SELECT list contained an INSERT or ELT function with value following it (CUBRIDSUS-6577)¶

Fix a problem in which query execution failed with the message "ERROR: System error (query result) in ../../src/parser/query_result.c" when the SELECT list contained an INSERT or ELT function and the value came after it.

SELECT INSERT('test',2,1,'hi'), 5;
SELECT ELT(2, 1), 5;

Fixed a problem in which abnormal termination occurred when a USING INDEX statement was included in a query containing an aggregate function in its subquery (CUBRIDSUS-8057)¶

Fix a problem in which abnormal termination occurred when a USING INDEX statement was included in a query that had an aggregate function in a subquery of the SELECT list.

Supports SELECT ALL/DISTINCT constant or DISTINCT (Column) (CUBRIDSUS-6080)¶

Modify to support SELECT ALL or SELECT DISTINCT constants.

SELECT ALL 1;
SELECT DISTINCT 1;

You can also execute aggregate functions by enclosing a column with parentheses or executing DISTINCT of constants.

SELECT SUM(DISTINCT(i)) FROM t;
SELECT SUM(DISTINCT 4) FROM t;

Made it possible to delete derived table names in the FROM clause (CUBRIDSUS-6546)¶

Improve to delete the name of a derived table in the FROM clause, which had to be necessarily specified.

SELECT * FROM (SELECT sysdate FROM db_root);

// Message before fixed
FROM (subquery) [ AS ] derived_table_name [( column_name [ {, column_name } ... ] )]

// Message after fixed
FROM (subquery) [ [ AS ] derived_table_name [( column_name [ {, column_name } ... ] )] ]

Removal of unused reserved words (CUBRIDSUS-6250)¶

Remove unused reserved words, such as ALIAS, TYPE, VIRTUAL, TEST, and WAIT, and now it is possible to use them as an identifier, such as the name of a table or column.

The followings are the previous reserved words which are removed on the new version.

ALIAS	ASYNC	CLUSTER	COMPLETION	DICTIONARY
EXCLUDE	LDB	OID	OPERATION	OPERATORS
OTHERS	PENDANT	PREORDER	PRIVATE	PROTECTED
PROXY	REGISTER	STRUCTURE	SYS_USER	TEST
THERE	TYPE	VIRTUAL	VISIBLE	WAIT

Possible to enter SELECT queries to the DO statement (CUBRIDSUS-6528)¶

Modify to make it possible to enter SELECT queries to the DO statement.

DO (SELECT count(*) FROM athlete);

Possible to use UTF-8 character set as the identifier, such as the name of a table or column (CUBRIDSUS-7227)¶

Make it possible to use a UTF-8 character set as an identifier, such as the name of a table or column. For more information, see Casing and identifiers.

Possible to use TO as well as AS between the existing and new names of a column when changing the name of the column (CUBRIDSUS-7477)¶

Previously, you could use only AS when changing the name of a column. Now you can also use TO instead of AS.

CREATE TABLE t ( a int);
ALTER TABLE t RENAME COLUMN a TO b;

Incorrect query result when an ORDER BY clause was used in the scalar subquery of an IN or NOT IN condition, or several columns existed in SELECT LIST (CUBRIDSUS-7700)¶

Fix a problem in which an incorrect query result would be displayed when an ORDER BY clause was used in the scalar subquery of an IN or NOT IN condition, or several columns existed in the SELECT list.

// The case number was always 0 when an ORDER BY clause was used in the scalar subquery.
SELECT * FROM tbl WHERE col IN (SELECT col FROM tbl2 ORDER BY b);

// The case number was always 0 when several columns existed in the SELECT list and the case number was 0.
SELECT * FROM tbl WHERE col IN (SELECT a, b FROM tbl2);
SELECT * FROM tbl WHERE col NOT IN (select a,b from tbl2);

Execution failed when the host variable type in an IN clause was date/time (CUBRIDSUS-7916)¶

Fix a problem in which normal execution failed when the host variable type in an IN clause was date/time.

In the previous version, when the type of the value to be bound was date/time, Q1 worked normally as the data was deleted, but Q2 worked abnormally because the data was not deleted.

DELETE FROM TBL WHERE D = ?;        -- Q1
DELETE FROM TBL WHERE D IN (?);        -- Q2

Incorrect results would be outputted when an ORDER BY clause, a correlated subquery and the ORDER BY clause with a specified column not found in the SELECT list were together (CUBRIDSUS-8640)¶

Fix a problem in which incorrect results would be outputted when there were a GROUP BY and a correlated subquery and when a column not found in the SELECT list was specified in the ORDER BY clause.

SELECT (SELECT f1.a FROM foo f1 WHERE f1.b=f2.b) as t
FROM foo f2
WHERE f2.b >= 1 and f2.b < 10
    GROUP BY f2.c
    ORDER BY f2.c;

Incorrect results when WITH ROLLUP corrector of a GROUP BY clause was specified (CUBRIDSUS-6518)¶

Fix a problem in which incorrect results would be produced when the WITH ROLLUP corrector of the GROUP BY clause was specified.

// The results was not outputted with ROLLUP.
SELECT a FROM t1 GROUP BY A WITH ROLLUP;

// The results was outputted with ROLLUP even though it should not be outputted since the column value was NULL and a>1.
SELECT a, COUNT(*) FROM t1 GROUP BY a WITH ROLLUP HAVING a>1;

Problem when the select list format of a subquery was "*, column", the following columns were not outputted (CUBRIDSUS-6589)¶

Fix a problem in which, when the SELECT list format of a subquery was "*, Column", the following columns were not outputted.

SELECT b FROM (SELECT *, 'hello' AS b FROM t1) t;

Error when the escape character specified in the ESCAPE clause was the last character of the LIKE pattern (CUBRIDSUS-6849)¶

Fix a problem in which query execution failed with the message "System error" when the escape character specified in the ESCAPE clause was the last character of the LIKE pattern.

CREATE TABLE foo(a char(10));
SELECT * FROM foo WHERE a LIKE 'ab' ESCAPE 'b';

ERROR: System error (db_compress_like_pattern) in ../../src/optimizer/query_rewrite.c (line: 3291)

Error when a query with wildcard (*) and a query with column name, both specified in the SELECT list, were united through UNION (CUBRIDSUS-6588)¶

Fix a problem in which query execution failed with the message "ERROR: The number of columns, 0, in the left query do not match the number of columns, N, in the right query." when a query with * and a query with column name, both specified in the SELECT list, were united through a statement set operator, such as UNION, despite the same number of columns.

(SELECT * FROM t1) UNION (SELECT a, b FROM t2 );

Incorrect results would be outputted when a comparison condition clause of a query contained a host variable (CUBRIDSUS-5843)¶

Fix a problem in which an unexpected result was outputted from a query when the comparison condition clause of the query contained a host variable and the type of the values entered to the host variable was converted.

// The result value was correctly outputted if constant was used, not host variable.
SELECT * FROM foo WHERE a > 2.5;

a
=============
3
4
5


// When the a column type was INT and input value was 2.5, an error occurred since it was converted to 3 with INT.

PREPARE stmt FROM 'SELECT * FROM foo WHERE a > ?';
EXECUTE stmt USING 2.5;

a
=============
4
5

Incorrect results were outputted when a query with a subquery containing UION and LIMIT clauses was executed (CUBRIDSUS-6596)¶

Fix a problem in which incorrect results were outputted when a query with a subquery that contained UNION and LIMIT clauses was executed.

CREATE TABLE t1 (a INT);
INSERT INTO t1 VALUES (1);

--The case number was 0 for the query below.
SELECT * FROM ((SELECT a from t1) UNION (SELECT a from t1) LIMIT 1) s1;

Error when a query with its subquery containing a UNION clause used in a WHERE clause was executed (CUBRIDSUS-6530)¶

Fix a problem in which query execution failed with the message "ERROR: '(select t1.i from t1 t1)<>0' is not union compatible with '(select t2.i from t2 t2)'." when a subquery containing a UNION clause is in the condition of a WHERE clause.

SELECT * FROM t1 WHERE EXISTS ((SELECT i FROM t1) UNION ALL (SELECT i FROM t2));

Incorrect query results were outputted when the OUTER JOIN query was executed in the merge join method (CUBRIDSUS-5703)¶

Fix an error in which incorrect query results were outputted when an OUTER JOIN query was executed in the merge join method.

SELECT /*+ USE_MERGE */ * FROM tab t
LEFT OUTER JOIN idx i on t.t = i.t
LEFT OUTER JOIN col c on i.i = c.i AND c.c = t.c;

If the number of the rows of ORDERBY_NUM() was bigger than that of ROWNUM in a query where ROWNUM and ORDERBY_NUM() were used together, the incorrect number was outputted as the result (CUBRIDSUS-6676)¶

In the condition in which the limited number of rows is outputted through ORDERBY_NUM() from the sorted result after limiting the number of rows through ROWNUM, if the number of rows of ROWNUM was bigger than that of ORDERBY_NUM(), the incorrect number was outputted as the result. This problem has been fixed.

SELECT * FROM foo f, bar b WHERE f.a > 0 AND f.a = b.a AND ROWNUM <=4 ORDER BY f.a FOR ORDERYBY_NUM()<=10;

Overflow error was not processed in the TIMEST AMP type (CUBRIDSUS-6004)¶

Fix a problem in which an overflow error was not processed in the query below with regard to the TIMESTAMP type. The new version returns an overflow error when the below query is executed.

SELECT timestamp'01/19/2038 12:14:07 pm' - CAST(-32768 as smallint);

Error when a subquery with an ORDER BY clause as the argument of the ANY and SOME determiners was executed (CUBRIDSUS-7799)¶

Fix a problem in which the "ERROR: Aggregate function must have 1 argument: min(t2.id, t2.a)." error occurred when an subquery with an ORDER BY clause as the argument of ANY, SOME determiners was executed.

SELECT * FROM t1 WHERE id > ANY(SELECT id FROM t2 ORDER BY a);

When executing multiple queries after preparing them concurrently, only the first query was executed normally (CUBRIDSUS-7455)¶

Fix a problem in which, when executing multiple queries repeatedly after preparing them concurrently, only the first execution was made normally and an error occurred from the second execution.

String MULTI_SELECT = "SELECT A FROM T1 WHERE A = ?
; UPDATE T1 SET A = 2 WHERE A = 2; SELECT A, B FROM T1 WHERE A = ?; SELECT A, B, A AS C FROM T1 WHERE A = ?;";

PreparedStatement p = c.prepareStatement(MULTI_SELECT);
...
while(...)
{
    ...

    p.execute();
    ...
}

Key limit optimization was applied incorrectly in a query with the EXISTS and FOR ORDERBY_NUM() BETWEEN conditions (CUBRIDSUS-9198)¶

Fix a problem in which inappropriate key limit optimization was applied in a query with the EXISTS and FOR ORDERBY_NUM() BETWEEN conditions and incorrect results were outputted.

SELECT cd, tcd, nm
FROM a
WHERE EXISTS (SELECT 1 FROM b
WHERE a.cd = b.cd
AND (b.no = 10000 OR b.uno =10000))
ORDER BY a.nm
FOR ORDERBY_NUM() BETWEEN 1 AND 50;

Error when the earlier VARCHAR type column was smaller than the later column in a UNION query (CUBRIDSUS-9148)¶

Fix a problem in which query execution failed with the message "ERROR: Execute: Query execution failure #1336." when the front VARCHAR type column was smaller than the later column in a UNION query.

CREATE TABLE u1 (a varchar(1));
CREATE TABLE u2 (a varchar(2));
INSERT INTO u1 values ('1');
INSERT INTO u2 values ('22');
SELECT a FROM (SELECT a FROM u1 UNION ALL SELECT a FROM u2) t(a);

Error when executing CASE or DECODE statements with a PREPARE statement (CUBRIDSUS-6847)¶

Fix a problem in which query execution failed with the message "ERROR: Semantic: System error (generate var) in ../../src/parser/xasl_generation.c" when a type was not able to be determined, for example, because all the arguments were given as a host variable, in the execution of the CASE or DECODE statements with a PREPARE statement.

PREPARE ST FROM 'SELECT CASE WHEN col=? THEN ? ELSE ? END FROM tbl;'

Malfunction when '%' was used as an escape character of the LIKE statement (CUBRIDSUS-7211)¶

Fix an error in which a malfunction occurred when '%' was used as an escape character of the LIKE statement.

// When the following query was executed, '%' character at first, random character at second, and 'cab' string after third were retrieved.
SELECT * FROM foo WHERE a LIKE '%%_cab' escape '%';

Overflow error even when division operations were executed with operands within the scope of the NUMERIC type (CUBRIDSUS-6506)¶

Fixed a problem in which query execution failed with the message "ERROR: Data overflow on data type numeric" when division operations were executed with NUMERIC type operands although an input argument value was a number within the scope of the NUMVER type.

-- An error occurred in the following case.
SELECT 9/1.2345678901211111111;
SELECT -9/1.2345678901211111111;

Precision and scale values for numeric types other than NUMERIC type and date/time types (CUBRIDSUS-6967)¶

In the previous version, the precision and scale values of numeric types other than NUMERIC type and date/time types were all 0. Now each type returns its precision and scale values. For example, as INT is a 10 digit number at maximum, its precision is 10 and its scale is 0. As DATETIME is expressed as "hh:mi:ss.fff mm/dd/yyyy", its precision is 23 and its scale is 3.

Error when a query was executed with a constant specified in a GROUP BY clause (CUBRIDSUS-6268)¶

Fix a problem in which query execution failed with the message "ERROR: xxxxxxxx in sort spec is out of range." when a constant was specified in a GROUP BY clause, as in SELECT '' AS group_key FROM tbl GROUP BY group_key.

Error when a condition query using NOT and unary operators (+, -) was executed (CUBRIDSUS-6040)¶

Fix a problem in which query execution failed with the message "ERROR: 'unknown opcode' operator is not defined on types integer and integer." when the following condition query using NOT and unary operator (-) was executed.

SELECT * FROM tab WHERE NOT - col0 = - col0;

An error that occurred when unary operators + and - were used together in a query statement has also been fixed.

SELECT * FROM tab0 WHERE col0 IN (+ - col0);

Server process would be abnormally terminated when a SELECT query to retrieve a specific column was executed for a view containing an ORDER BY clause (CUBRIDSUS-7140)¶

CREATE VIEW va AS SELECT code, name, gender, nation_code FROM athlete ORDER BY nation_code;
SELECT code, name FROM va;

Error when an INSERT INTO ... SELECT ? ... query was executed while binding INT type in a CHAR type column (CUBRIDSUS-6563)¶

Fixed a problem in which query execution failed with the message "ERROR: A domain conflict exists on attribute noname" when binding INT type in a CHAR type column when the INSERT INTO ... SELECT ? FROM db_root query was executed.

CREATE TABLE t ( a CHAR(1));
PREPARE s FROM 'INSERT INTO t SELECT ? FROM db_root';
EXECUTE s USING 1;

Server process was abnormally terminated when one condition of an IN or EXISTS expression was a subquery with the SELECT list comprising conditional expressions (CUBRIDSUS-6482)¶

Fix a problem in which the server process was abnormally terminated when the condition of the IN or EXISTS expression was a SELECT list comprising conditional expressions, such as simple comparison, ALL, BETWEEN, LIKE, and ISNULL.

SELECT * FROM t1 WHERE v IN (SELECT (1 = 1));
SELECT * FROM t1 WHERE v IN (SELECT (aaa' LIKE 'bbb'));
SELECT * FROM t1 WHERE EXISTS (SELECT (1 < ALL{1,3,4} );

Error when a query containing a USING INDEX clause was executed after the partial rollback to before the schema was changed (CUBRIDSUS-6458)¶

Fix a problem in which query execution failed with the message "ERROR: Execute: Query execution failure #10842." when a query containing a USING INDEX  clause was executed after the execution of partial rollback to before the schema was changed.

;autocommit off
CREATE TABLE t (id INTEGER, textlabel VARCHAR(255), description VARCHAR(4096));
CREATE INDEX i_t_id_text ON t(id, textlabel);
COMMIT;
SAVEPOINT sp4;
TRUNCATE t;
SELECT * FROM t WHERE id > -1 USING INDEX i_t_id_text(+);
ROLLBACK TO SAVEPOINT sp4;
SELECT * FROM t WHERE id > -1 USING INDEX i_t_id_text(+);

CSQL and CAS was abnormally terminated when a column not defined in the CASE expression or when the LAST_INSERT_ID() was called after the termination of the server process (CUBRIDSUS-5759)¶

Fix a problem in which CSQL and CAS were abnormally terminated when the CASE expression contained a column not defined.

//IN the statement below, a was not be defined.

UPDATE tbl SET col1 = (CASE WHEN EXISTS (SELECT * FROM tbl2 WHERE LENGTH(a)>0 )
                            THEN (SELECT col2 FROM tbl2 WHERE colx='1' )
                            ELSE (SELECT col1 FROM tbl2 WHERE colx='1' ) END )

A problem in which CSQL and CAS would be abnormally terminated when LAST_INSERT_ID() was called after the termination of the server process has also been fixed.

Applications were abnormally terminated when a subquery of over 128 in depth was executed (CUBRIDSUS-7826)¶

Fix a problem in which applications were abnormally terminated when a subquery of over 128 in depth was executed.

SELECT * FROM (SELECT * FROM (... (SELECT 1)...)...);

Length of a string type was incorrectly outputted when a DESCRIBE statement was executed (CUBRIDSUS-6432)¶

Fix an error in which the length of a STRING was outputted incorrectly as -1 when the DESCRIBE statement was executed to output table information. This has been modified not to output the value.

For reference, STRING(n) means the VARCHAR(n) type.

DESCRIBE test_tbl;

Field Type Null Key Default Extra
==========================================
's_name' 'CHAR(1)' 'YES' '' NULL ''
'f_name' 'STRING(30)' 'YES' '' NULL ''
'name' 'STRING' 'YES' '' NULL ''

Precision (p) and scale (s) exceeding the allowable range were allowed to be entered in a DECIMAL(p, s) type (CUBRIDSUS-6505)¶

Fix an error in which the values exceeding the precision (p) and scale (s) of the DECIMAL(p, s) type were allowed to be entered.

CREATE TABLE t1 (col1 decimal (5, 2));

// An error where 1000.00 value was stored existed when the below query execution succeed.
INSERT INTO t1 VALUES (999.999);

Syntax checking for a DEFAULT expression was not executed in creating a table (CUBRIDSUS-6761)¶

Modify to execute syntax checking for a DEFAULT expression when creating a table. Previously, in the example below, a table was created while ignoring the input of -9999 after SYSTIMESTAMP. Now in this case, an error will be outputted as it is not correct in terms of syntax.

CREATE TABLE foo(a TIMESTAMP DEFAULT SYSTIMESTAMP - 9999);

Error: Invalid DEFAULT clause. 'sys_timestamp ' cannot be used in a nested expression.

A character string being bound was not automatically converted to a numeric type when multiplication/division operations between host variables were executed (CUBRIDSUS-5506)¶

Fix an error in which a character string being bound was not automatically converted to a numeric type when multiplication/division operations between host variables were executed.

CREATE TABLE t1 (i1 integer);
PREPARE st FROM 'INSERT INTO t1(i1) VALUES (? * ?)'
EXECUTE st USING '4', '2.2';

Incorrect results of the LAST_IONSERT_ID function would be outputted after failing in the execution of the INSERT statement due to the violation of the UNIQUE key (CUBRIDSUS-6450)¶

Fix a problem in which incorrect results of the LAST_INSERT_ID function would be outputted after failing in the execution of the INSERT statement due to the violation of the UNIQUE key.

CREATE TABLE t1 ( k int(11) PRIMARY KEY AUTO_INCREMENT, a INT(11) DEFAULT NULL UNIQUE);
INSERT INTO t1 ( a ) VALUES ( 1 );
INSERT INTO t1 ( a ) VALUES ( 2 );

--below sql will fail because of unique constrain in a column.
INSERT INTO t1 ( a ) VALUES ( 1 );

--below should return an old value(2) because of failed insert operation.
SELECT LAST_INSERT_ID();

Error when an invalid ALTER COLUMN statement was executed (CUBRIDSUS-6759)¶

Fix a problem in which an error was not outputted when an invalid ALTER COLUMN ... SET DEFAULT statement was executed. In the following example, as the column "a" is TIMESTAMP, you cannot use a character string such as "aaa" as a DEFAULT value.

CREATE TABLE foo(a TIMESTAMP);
ALTER TABLE foo ALTER COLUMN a SET DEFAULT 'aaa';

Incorrect value was stored when a value was set through the setBytes() method and inserted to a BIT type column (CUBRIDSUS-6628)¶

Fix a problem in which an incorrect value was stored when the value of a host variable was set through the setBytes() method and inserted to a BIT type column in JDBC applications.

NULL would be entered into the primary key when the INSERT ... ON DUPLICATE KEY UPDATE statement was executed (CUBRIDSUS-6448)¶

Fix a problem in which NULL was entered into the primary key when the INSERT ... ON DUPLICATE KEY UPDATE statement was executed, as in the following example.

CREATE TABLE t1( id int AUTO_INCREMENT NOT NULL, c CHAR(1) NOT NULL , counter int NOT NULL DEFAULT 1, PRIMARY KEY(id), UNIQUE KEY(c) ) ;
INSERT INTO t1 (id, c) VALUES (NULL, 'a'), (NULL, 'a') ON DUPLICATE KEY UPDATE id = null, counter = counter + 1;

Incorrect result of a COUNT(*) query when the value of a UNIQUE column was entered as NULL in the execution of the INSERT ... SELECT statement (CUBRIDSUS-8338)¶

Fix a problem in which an incorrect result of a COUNT(*) query was outputted when the value of a UNIQUE column was entered as NULL in the execution of the INSERT ... SELECT statement. In the previous version, a COUNT query is executed normally when the name of a column is specified, as in COUNT(column name).

CREATE TABLE t1(id INT AUTO_INCREMENT, mgrid INT UNIQUE, dummy INT);
INSERT INTO t1(dummy) VALUES (1);
INSERT INTO t1(dummy) SELECT dummy FROM t1;
INSERT INTO t1(dummy) SELECT dummy FROM t1;

SELECT count(*) FROM t1;

Error when performing INSERT into a list partitioned table with an AUTO_INCREMENT column (CUBRIDSUS-6522)¶

Fixed a problem in which query execution failed with the message "ERROR: Appropriate partition does not exist." when performing INSERT into a list partitioned table with an AUTO_INCREMENT column.

CREATE TABLE t1 (a int AUTO_INCREMENT PRIMARY KEY)
PARTITION BY LIST (a) (PARTITION p0 VALUES IN (1, 2));

INSERT INTO t1 VALUES (NULL),(NULL);

Server process was abnormally terminated when performing INSERT or UPDATE into a table that has 100 or more constraints for a single column (CUBRIDSUS-6437)¶

Fixed a problem in which the server process was abnormally terminated when performing INSERT or UPDATE to a table that has 100 or more constraints (e.g., constraints on foreign key) for a single column.

Error when inserting a character string to the BLOB and CLOB types on a Windows 64 bit environment (CUBRIDSUS-6111)¶

Fixed a problem in which query execution failed with the message "ERROR: Cannot coerce '123' to type clob." when inserting a character string to the BLOB and CLOB types on a Windows 64 bit environment.

CREATE table alltypes(blob_col blob,clob_col clob);
INSERT into alltypes values('123', '123')

Deadlock when the REPLACE statement and the DELETE statement were executed as separate transactions (CUBRIDSUS-5016)¶

Fixed a problem in which deadlock would occur when the REPLACE statement and the DELETE statement were executed as separate transactions.

CREATE TABLE t1(a int);
CREATE UNIQUE INDEX ON t1 (a);
INSERT INTO t1 VALUES (1),(4),(7);

// set autocommit off
T1: REPLACE t1 (a) VALUE (6);
T2: REPLACE t1 (a) VALUE (7);
T1: DELETE FROM t1 WHERE a=6
T2: REPLACE t1 (a) VALUE (5);

A unique key violation error when using the REPLACE statement (CUBRIDSUS-5786)¶

Fixed a problem in which a unique key violation error would occur when using the REPLACE statement.

CREATE TABLE t1(id1 VARCHAR(10) UNIQUE);
INSERT INTO t1 VALUES ('a'),('b'),('f'),('k');
COMMIT;

T1: DELETE FROM t1 WHERE id1 = 'f';
INSERT INTO t1 VALUES ('g');
T2: INSERT INTO t1 VALUES ('f');
COMMIT;
T1: ROLLBACK;
T3: REPLACE INTO t1 SET id1 = 'f';

Possible to omit the FROM keyword in the DELETE statement (CUBRIDSUS-6547)¶

Modified to be able to omit the keyword in the DELETE statement when there is only a single table under the FROM clause.

DELETE tbl;

Incorrect results were outputted when another thread performed SELECT while executing UPDATE in a single table (CUBRIDSUS-8460)¶

Fix a problem in which incorrect results would be outputted when another thread (transaction isolation level - uncommitted read) executed SELECT while executing UPDATE to a single table.

Error -46 was wrtten to the server log while executing UPDATE and SELECT concurrently (CUBRIDSUS-8347)¶

There was a problem in which the error -46 “Internal error: slot 17 on page 166272 of volume xxx is not allocated." would occur when executing SELECT and UPDATE (isolation level - uncommitted read) concurrently for the same table. However, the new version has been modified to output a warning rather than an error because a query is executed normally even when the error occurs.

Transaction consistency was not ensured when table lock occurred due to another transaction while repeatedly executing the INSERT statement (CUBRIDSUS-8303)¶

After a transaction, which would be executed repeatedly after preparing the INSERT statement, was executed first and committed, when the transaction executed INSERT again after another transaction set X-lock to the table, the consistency of transactions was not ensured because locking was not performed accurately due to the lack of the IX-lock for the table. The new version has fixed this problem.

This problem can occur on the CUBRID 2008 R4.1 or higher.

SELECT query for a table deleted by another transaction did not output an error but returned 0 (CUBRIDSUS-7389)¶

Fix a problem in which a SELECT query for a table deleted by another transaction did not output an error (cannot find the table) but returned 0.

Server process would hang when a deadlock occurred from the click counter (CUBRIDSUS-7378)¶

Fix a problem in which the server process would hang when a deadlock occurred from the click counter function and the server process failed to detect it. In general, when a deadlock occurs from the click counter, only the update of the click counter is ignored and the other queries are normally executed.

Latch timeout error that occurred when two or more transactions attempted to generate or expand temporary temp volume concurrently (CUBRIDSUS-6667)¶

Fix a problem in which query execution failed with the message "LATCH ON PAGE(12345|0) TIMEDOUT" when two ore more transactions attempted to generate or expand temporary temp volume concurrently.

REUSE_OID attribute was not copied when copying and creating a REUSE_OID table by using the CREATE TABLE ... LIKE statement (CUBRIDSUS-7371)¶

Fix an error in which the REUSE_OID attribute was omitted in a newly created table when copying and creating a REUSE_OID table by using the CREATE TABLE ... LIKE statement.

CREATE TABLE src_tbl (i INT) REUSE_OID;
CREATE TABLE dest_tbl LIKE src_tbl;

DEFAULT attributes were added through the ALTER statement in a column with the AUTO_INCREMENT attribute (CUBRIDSUS-6407)¶

Fixed a problem in which the DEFAULT attribute was added by using the ALTER statement although it is impossible to set the AUTO_INCREMENT and DEFAULT attributes together in the same column.

CREATE TABLE tbl (x INT SHARED 3);
ALTER TABLE tbl ALTER COLUMN x SET DEFAULT 100;

-- The following error was outputted.
SHARED, DEFAULT and AUTO_INCREMENT cannot be defined with each other.

Cache option configuration of serial was not altered through the ALTER SERIAL statement (CUBRIDSUS-7120)¶

Fixed a problem in which the cache option was not activated or deactivated by the ALTER SERIAL statement.

CREATE SERIAL s2 STARt WITH 5 INCREMENT BY 6 CACHE 5;
ALTER SERIAL s2 NOCACHE;

DEFAULT NULL constraint was set to a primary key column (CUBRIDSUS-7348)¶

Made it impossible to set the DEFAULT NULL constraint to a primary key column.

// An problem existed where the query below was executed.
CREATE TABLE t(a INT PRIMARY KEY DEFAULT NULL);

Primary key was able to be declared to both the upper class and subclass (CUBRIDSUS-9207)¶

When a primary key was in the upper class, the key should not be declared in its subclasses because the subclasses would inherit it from the upper class. The new version has fixed a problem in which primary key was declared in subclasses.

CREATE TABLE student (std_id INT PRIMARY KEY);
CREATE TABLE time_table as subclass of student (std_id INT PRIMARY KEY);

Space would not be returned when dropping a table with the REUSE_OID option (CUBRIDSUS-8140)¶

Fixed a problem in which space was not returned when an internal error occurred in the server while dropping a table with the REUSE_OID option.

Error when the type of the second value to be bound to host variable was not identical to the first one (CUBRIDSUS-7377)¶

Fixed a problem in which an error would occur when the type of the second value to be bound to a host variable was not identical to the first one and an attempt to bind it into the type of the first one was made. For example, an error occurred when attempting to bind 'A' to the INTEGER type after 1 was already bound to 'SELECT ?'.

Server process would be abnormally terminated when executing a query for a view containing a host variable (CUBRIDSUS-6767)¶

Fixed a problem in which the server process would be abnormally terminated when executing a query for a view containing a host variable. DDL containing a host variable is not allowed.

CREATE TABLE tree(node INT,parentnode INT,name VARCHAR(30));
INSERT INTO TREE VALUES (1, NULL,'1'),(2, 1,'2'),(3, 1,'3'),(4,2,'4');
PREPARE stmt FROM 'CREATE VIEW v as SELECT parentnode,node,name FROM tree WHERE node < ? START WITH parentnode IS NULL CONNECT BY parentnode=PRIOR node ORDER BY node';
EXECUTE stmt USING 3;
SELECT * FROM v;

DEFAULT value was not copied when creating a view (CUBRIDSUS-6772)¶

Fixed a problem in which the DEFAULT values of the source table were not copied when the CREATE VIEW AS SELECT ... statement was executed.

CREATE TABLE foo(a INT DEFAULT 222);
CREATE VIEW voo AS SELECT * FROM foo;
INSERT INTO voo VALUES(DEFAULT);

Error when executing a SELECT query without a FROM clause in queries of a view (CUBRIDSUS-6592)¶

Fixed a problem in which query execution failed with the message "ERROR: There are more attributes in class v1 than columns in the query specification." when executing a SELECT query without a FROM clause in queries of a view.

CREATE VIEW v1 AS (SELECT 1 a) UNION (SELECT 1 a);
SELECT * FROM v1;

Query execution would fail when complex expressions appeared in the SELECT list when creating or changing a view (CUBRIDSUS-8970)¶

Fixed a problem in which query execution would fail when complex expressions appeared in the SELECT list when creating or changing a view. As in the example below, unless a column alias is not specified for a complex expression in the SELECT list, "SQRT(CAST(100 as double))" will become the column alias. As such expressions are not allowed as an identifier, it is necessary to use signs to enclose the identifier (double quotes, brackets or backticks). The new version has eliminated the problem by internally adding a sign to enclose an identifier when executing a query.

CREATE VIEW vw AS SELECT SQRT(CAST(100 as double));
// If query above is executed, it will be internally performed as follows:
CREATE VIEW vw AS SELECT SQRT(CAST(100 as double)) AS [ SQRT(CAST(100 as double)) ];

Previously, in the HA environment, this problem would occur even when a query was written to prevent it in the master node because a query was re-written to CAST argument values in a function in the slave node.

// If query below is executed, the query will be rewritten in the form of first query in slave node.
CREATE VIEW vw AS SELECT SQRT(100);

Modify not to allow for users to change the records of the db_user, db_trigger system catalog table randomly (CUBRIDSUS-8690)¶

Modify not to allow for users to INSERT, UPDATE or DELETE the records of the db_user, db_trigger system catalog table randomly.

Error when entering values to a table referenced by a foreign key (CUBRIDSUS-6216)¶

Fix a problem in which query execution failed with the message "ERROR: The constraint of the foreign key 'fk_pkfk_b' is invalid." when entering values to a table referenced by a foreign key.

Server process was abnormally terminated when creating a table with the DEFAULT value of a column bigger than a page (CUBRIDSUS-6510)¶

Fix a problem in which the server process was abnormally terminated when creating a table with the DEFAULT value of a column bigger than a page.

Login failed with a username longer than 32 bytes (CUBRIDSUS-6633)¶

There was a problem in which login fails when a username is longer than 32 bytes. In the new version, you can specify a username up to 32 bytes when creating a DB user account.

CREATE USER a12345678901234567890123456789012345678901234567890;

$ csql -u a1234567890123456789012345678901234567890123456
ERROR: User "a12345678901234567890123456789012345" is invalid.

Allow a CONNECT BY clause to be placed after a START WITH clause (CUBRIDSUS-6548)¶

Modify to enable a CONNECT BY clause to be placed after a START WITH clause in a hierarchy query.

SELECT * FROM a CONNECT BY PRIOR id = pid START WITH id = 1;

Incorrect query results when a hierarchy query with an ORDER SIBLINGS BY clause was used as a subquery (CUBRIDSUS-7748)¶

Fix a problem in which incorrect query results were outputted when a hierarchy query containing a ORDER SIBLINGS BY clause was used as a subquery because the query was re-written incorrectly in the query optimizer.

SELECT *
FROM tbl
WHERE id IN (SELECT id FROM tbl
    WHERE yn = 'Y'
    START WITH id = '100002'
    CONNECT BY NOCYCLE PRIOR id = pid
    ORDER SIBLINGS BY sort_col);

Incorrect number of query results in a hierarchy query with the ROWNUM condition (CUBRIDSUS-6365)¶

Fixed a problem in which the number of query results was not limited by the ROWNUM condition when a hierarchy query with the ROWNUM condition was processed through the index scan.

SELECT oid
FROM foo
WHERE ROWNUM = 1
    START WITH oid = '1234567'
    CONNECT BY PRIOR poid = oid

Server process would be abnormally terminated when restarting the DB server during the execution of a query using the temporary temp volume (CUBRIDSUS-5684)¶

Fix a problem in which the server process would be abnormally terminated when restarting the database while executing a query using the temporary temp volume.

Query would fail to be processed even when the user provided a solution to a failed auto-increment (CUBRIDSUS-7216)¶

Previously, the query would fail to be processed even when the user provided a solution, such as restarting the server, to a failed auto-increment that was caused by an abnormal termination of the server process during an auto-increment. This problem has been solved.

Trigger execution failed (CUBRIDSUS-7187)¶

Fixed a problem in which trigger execution failed as an error occurred or the application was abnormally terminated, as in the examples below.

Case 1) In the previous version, an error occurred when the following query was executed.

CREATE TABLE t1(a INT);
INSERT INTO t1 VALUES(1), (2), (3), (4);
CREATE TRIGGER TRIGG1 BEFORE UPDATE ON t1 EXECUTE DELETE FROM t1;
UPDATE t1 SET a=6;
ERROR: Error evaluating action for "trigg1", Accessing deleted object 0|1100|16.

Case 2) In the previous version, the application was abnormally terminated when the following query was executed.

CREATE TABLE t1(a INT, b INT);
INSERT INTO t1 VALUES (2,2), (3,3);
CREATE VIEW v1 AS SELECT * FROM t1;
CREATE TRIGGER tri_t1_before_update1 BEFORE UPDATE ON t1 EXECUTE DELETE FROM v1;
CREATE TRIGGER tri_t2_before_update2 BEFORE UPDATE ON t1 EXECUTE DELETE FROM t1;

--Test: crash happens.
UPDATE t1 SET t1.a=10;

If a table created by another user had a trigger, query errors with regard to the table were ignored (CUBRIDSUS-7336)¶

Fixed a problem in which, if a table created by another user had a trigger, errors would not occur even when query execution with regard to the table failed but the message "ERROR: Internal system failure: no more specific information is available." would be outputted when the transaction was terminated later.

Triggered query would not roll back even when a triggered UPDATE/INSERT query failed (CUBRIDSUS-7239)¶

Previously, the triggered query would not roll back even when a triggered UPDATE/INSERT query failed while auto-commit mode was off. This problem has been fixed. In the following example, executing the Q6 will start the trig1 trigger in the t2 table. At this point, an error would occur because a value in int cannot be entered in the t1 table, and the Q6 should have rolled back. This means that the number of records for the t1 table should be 1, and the number of records for the t2 table should be 0 after executing Q7. In the previous version, the Q6 query that started the trig1 trigger would not roll back when an error occurred.

;autocommit off

CREATE TABLE t1(col1 date);  -- Q1
CREATE TABLE t2(col2 int);  -- Q2
CREATE TRIGGER trig1 AFTER INSERT ON t2 EXECUTE INSERT INTO t1(col1) VALUES(obj.col2);   -- Q3
COMMIT;   -- Q4
INSERT INTO t1(col1) VALUES ('2012-04-30');  -- Q5
INSERT INTO t2(col2) VALUES (1);  -- Q6

ERROR: Error evaluating action for ""trig1"", Execute: Cannot coerce obj.cold2 to type date.

COMMIT;  -- Q7

NULL was returned when CLOB_TO_CHAR() was called in the trigger (CUBRIDSUS-7246)¶

Fix a problem in which NULL was returned when CLOB_TO_CHAR() was called in the trigger.

Storing more query plans than the maximum number of query plans configured in the query plan cache (CUBRIDSUS-8619)¶

Fix a problem of storing more query plans than the maximum number of query plans configured in the query plan cache through the max_plan_cache_entries system parameter. In the previous version, this problem would cause the usage of server memory and temporary volume to continuously increment.

Query result was 0 if the query contained ORDERBY_NUM() when an ORDER BY clause was removed in the query optimization process (CUBRIDSUS-6060)¶

Fix an error in which the result was outputted as 0 because orderby_num() was not removed when the query optimization process removed the unnecessary ORDER BY clause.

SELECT orderby_num(), history.*
FROM history
WHERE host_year = '2004'
ORDER BY host_year FOR orderby_num() BETWEEN 1 AND 10;

Application was abnormally terminated when executing the PREPARE statement with the query plan cache disabled (CUBRIDSUS-8094)¶

Fix a problem in which the application was abnormally terminated when executing the PREPARE statement with the query plan cache disabled by configuring the max_plan_cache_entries system parameter as -1.

CREATE TABLE t(a INT);
INSERT INTO t VALUES (1), (2), (3);
PREPARE STMT FROM 'select count(?) from t';
EXECUTE STMT USING 1;

Incorrect results would be outputted when executing a query after the query plan information was outputted (CUBRIDSUS-7818)¶

Fix a problem in which incorrect results would be outputted when outputting a query plan by executing the ;plan simple command because the input value was converted to the type of the column corresponding to the value. As shown in the following example, in the previous versions, the input value 23 was converted to 2 and passed to the server when the query plan was outputted and as a result 2 was not included in the result.

CREATE TABLE foo(col INT);
INSERT INTO foo VALUES (1),(2);
;plan simple
SELECT * FROM foo WHERE col < 2.3;

When executing a query after changing the table name in the query not using query plan cache, the query was executed for the previous table (CUBRIDSUS-7637)¶

Fix a problem in which, when executing a query after changing the table name, the query was executed not for a new table with the name but for the previous table before the change of the name. In the previous version, this problem always occurred because the INSERT statement did not use query plan cache. This problem also occurred in the other queries when the query plan cache feature was disabled by configuring the value of the max_plan_cache_entries system parameter as -1.

// Example of insert
INSERT INTO tbl VALUES (...);
RENAME TABLE tbl AS tbl_old;
RENAME TABLE tbl2 AS tbl;

// When the query was executed, tbl_old will perform INSERT
INSERT INTO tbl VALUES (...);

Error when executing the covering index scan query for a specific OUTER JOIN query (CUBRIDSUS-7868)¶

Fix a problem in which the "Query execution failure #10946." would occur in the execution when the covering index scan query plan was incorrect for a specific query with the OUTER JOIN condition.

SELECT foo.obj_id, foo.h_id
FROM foo
INNER JOIN table_j ON foo.host_id = table_j.host_id
LEFT OUTER JOIN table_d ON foo.s_id = table_d.svc_no
LEFT OUTER JOIN table_g ON foo.g_id = table_g.svr_grp_no
WHERE table_d.svc_no = foo.s_id
AND foo.s_id = '2152';

Query plan was not outputted when an IN clause had a host variable (CUBRIDSUS-6382)¶

Fix an error in which the query plan would not be outputted when an IN clause contains a host variable in the form of (?, ?, ...).

csql> ;plan detail
csql> SELECT * FROM tbl WHERE id IN (?, ?, ?);

Results omitting some conditions would be outputted when executing a query with multiple AND and OR conditions (CUBRIDSUS-9193)¶

Fix a problem in which results omitting some conditions would be outputted due to a query plan bug when executing a query with multiple AND and OR conditions.

SELECT *
FROM it, p
WHERE
(
  p_pkey = l_pkey
  and p_br = 'Br12'
  and p_ct in ('CS', 'BX', 'PK', 'PG')
  and l_qty >= 1 and l_qty <= 1 + 10
  and p_sz between 1 and 5
  and l_sm in ('A', 'RG')
  and l_st = 'DIP'
)
OR
(
  p_pkey = l_pkey
  and p_br = 'Br12'
  and p_ct in ('MG', 'MB', 'MPK', 'MPC')
  and l_qty >= 10 and l_qty <= 10 + 10
  and p_sz between 1 and 10
  and l_sm in ('A', 'RG')
  and l_st = 'DIP'
)
OR
(
  p_pkey = l_pkey
  and p_br = 'Br12'
  and p_ct in ('LG', 'LB', 'LPK', 'LPC')
  and l_qty >= 20 and l_qty <= 20 + 10
  and p_sz between 1 and 15
  and l_sm in ('A', 'RG')
  and l_st = 'DIP'
);

Query would not be deleted in the query plan cache when deleting a column or table including AUTO_INCREMENT (CUBRIDSUS-7872)¶

When a column or table containing AUTO_INCREMENT was deleted, the related query was not deleted in the query plan cache and consequently the serial was generated with the same name as AUTO_INCREMENT. As a result, a problem occurred with the message "ERROR: Cannot fetch serial object." when a query was executed with the serial. The new version has fixed this problem.

CREATE TABLE tbl ( a INT AUTO_INCREMENT);
SELECT tbl_ai_a.NEXT_VALUE;
DROP TABLE tbl;
CREATE SERIAL tbl_ai_a;
SELECT tbl_ai_a.NEXT_VALUE;

Application would be abnormally terminated when executing the REPLACE statement after configuring the optimization level to generate only a plan without executing a query (CUBRIDSUS-6614)¶

Fix a problem in which the application would be abnormally terminated when executing a REPLACE statement after configuring the OPTIMIZATION LEVEL as either 2,258 or 514 so that only a plan can be generated without executing a query.

SET OPTIMIZATION LEVEL 2;
DROP TABLE t;
CREATE TABLE t( col1 INTEGER UNIQUE, col2 VARCHAR(128));
INSERT INTO t(col1, col2) VALUES (17, 'operators list');
REPLACE t(col1, col2) VALUES (17, 'personnel list');

UPDATE of the view failed after re-creating the view (CUBRIDSUS-6942)¶

Fixed a problem in which UPDATE failed when, after re-creating the view, executing the UPDATE statement in the execution of UPDATE, because the view dropped by using the previous query plan was referenced.

CREATE TABLE foo(a int);
INSERT INTO foo VALUES (3);

CREATE VIEW v AS SELECT * FROM foo WHERE a <2;
UPDATE v SET a=3;
DROP VIEW v;

CREATE VIEW v AS SELECT * FROM foo WHERE a <2;
UPDATE v SET a=3;

Modify to select the best among the query plans available for ORDER BY optimization or GROUP BY optimization (CUBRIDSUS-6957)¶

Fix a problem in which the full index scan would be selected even when a better plan existed among the query plans available for ORDER BY optimization (skip ORDER BY) or GROUP BY optimization (skip GROUP BY).

Modify to return results immediately when LIMIT 0 (CUBRIDSUS-7420)¶

Modify to return results immediately without executing a query when LIMIT 0. In the previous version, it took long to process a query in some cases because a LIMIT clause was evaluated after executing the query.

SELECT CAST(dt_col AS DATE)
FROM article
WHERE id = '001' AND dt_col < TO_DATE('20120201', 'YYYYMMDD')
ORDER BY CAST(dt_col AS DATE) DESC
LIMIT 0;

Modify to be possible to use a local index in a partitioned table (CUBRIDSUS-7629)¶

Modify to be able to create a local index independently comprising an index for each partition of a partitioned table according to the conditions defined internally in the system. All foreign keys and non-unique indexes are a local index. Unique indexes are a local index only when the partition key belongs to a unique index. In the previous version, unique indexes, including primary keys, were all a global index. From CUBRID 9.0 Beta, however, they are a local index if they include a partition key. The performance is improved when using a local index instead of a global index.

Deterioration of the INSERT performance on a partitioned table (CUBRIDSUS-6018)¶

Fix a problem in which the performance was deteriorated when executing INSERT to a partitioned table.

Enable the execution of the TRUNCATE statement to a partitioned table (CUBRIDSUS-6871)¶

The new version allows the TRUNCATE to be executed in a partitioned table.

Incorrect SELECT result of a range-partitioned table was outputted when the auto commit mode was OFF (CUBRIDSUS-7127)¶

Fix a problem in which, if executing SELECT while performing INSERT to a range-partitioned table with the auto commit mode OFF, and additionally executing INSERT and SELECT, the additionally inserted record would not be outputted.

csql>; autocommit off
CREATE TABLE foo (id1 BIGINT) PARTITION BY RANGE(id1) (
    PARTITION p1 VALUES LESS THAN (3),
    PARTITION p2 VALUES LESS THAN (5),
    PARTITION p3 VALUES LESS THAN (8)
);

INSERT INTO foo VALUES (1);

// If Q1 was executed after Q2 had been executed, the 1 record which had performed INSERT before Q1 execution was outputted.
SELECT * FROM foo;    -- Q1
INSERT INTO foo VALUES (1);
INSERT INTO foo VALUES (1);
SELECT * FROM foo;    -- Q2

Incorrect results were outputted when there was the IS NULL OR IS NOT NULL condition when executing SELECT in a range-partitioned table (CUBRIDSUS-4575)¶

Fixed a problem in which incorrect results were outputted when there was the IS NULL OR IS NOT NULL condition when executing SELECT in a range-partitioned table.

SELECT * FROM tbl
WHERE a IS NULL OR a IS NOT NULL;

Incorrect query results were outputted when executing OUTER JOIN in a partitioned table (CUBRIDSUS-6888)¶

The new version has fixed a problem in which incorrect query results were outputted when executing OUTER JOIN in a partitioned table.

CREATE TABLE pt1(i int,j int) PARTITION BY HASH(i) PARTITIONS 4;
CREATE TABLE pt2(i int,j int) PARTITION BY HASH(i) PARTITIONS 4;

INSERT INTO pt1 VALUES (1,1),(2,2),(3,3);
INSERT INTO pt2 VALUES (1,1);
CREATE INDEX idx ON pt2(i);

// When the query below was executed, first record was incorrectly outputted like "1, 1, NULL, NULL".
SELECT * FROM pt1 LEFT JOIN pt2 ON pt1.i=pt2.i USING INDEX idx(+);

i j i    j
==============
1 1 1    1
2 2 NULL NULL
3 3 NULL NULL

Constraint conditions were not checked when creating a foreign key in a partitioned table (CUBRIDSUS-6916)¶

The new version has fixed a problem in which constraint conditions were not checked when creating a foreign key in a partitioned table.

CREATE TABLE t1(i INT PRIMARY KEY);
INSERT INTO t1 VALUES(1);
CREATE TABLE t2(i int,j int) PARTITION BY HASH(i) PARTITIONS 4;
INSERT INTO t2 VALUES (2,2);
ALTER TABLE t2 ADD CONSTRAINT FOREIGN KEY t2(i) REFERENCES t1(i);

Data was inputted into only one partitioned table when entering data into a hash partitioned table partitioned by using the AUTO_INCREMENT column as a partition key (CUBRIDSUS-5622)¶

Fix a problem in which data would be inputted into only one partitioned table when entering data to a hash partitioned table by using the AUTO_INCREMENT column as a partition key.

CREATE TABLE t(i INT AUTO_INCREMENT) PARTITION BY HASH(i) PARTITIONS 3;
INSERT INTO t(i) VALUES (NULL), (NULL), (NULL), (NULL), (NULL), (NULL), (NULL), (NULL);

Partition pruning would not operate when entering a partition key value as a function in a list partitioned table (CUBRIDSUS-5777)¶

Fix a problem in which the partition pruning, which excludes partitions not included in the query result from the search condition, would not operate, when entering a partition key value as a function in a list partitioned table.

Partitioned table would be created in a child table (CUBRIDSUS-8703)¶

In the previous version, a parent table would be deleted even when the parent table contained the column used as the partition key of its child table. To prevent this error, the new version has made it impossible to create a partitioned table in a child table.

Records would not be deleted with the view created with regard to a partitioned table with a CLOB column (CUBRIDSUS-8216)¶

Fix a problem in which an error would occur when deleting records with the view created with regard to a partitioned table with a CLOB column.

CREATE TABLE t(i INT,c CLOB) PARTITION BY HASH(i) PARTITIONS 4;
INSERT INTO t SELECT ROWNUM,'1' FROM db_class LIMIT 40;
CREATE VIEW v AS SELECT * FROM t;

// When the query below was executed, "ERROR: Semantic: ..." error occurred.
DELETE FROM v;
CREATE TABLE t(i INT,c VARCHAR(10)) ;
CREATE VIEW v AS SELECT * FROM t;

Creating a partitioned table would not be reflected to the slave node in the HA environment (CUBRIDSUS-7724)¶

Fix a problem in which the partitioned table creation statement would not be reflected to the slave node when creating a partitioned table in the HA environment.

CREATE TABLE t1 (a int PRIMARY KEY)
PARTITION BY HASH (a) PARTITIONS 2;

Error when the inserted records in a partitioned table had to move to another partition through the UPDATE statement of the trigger (CUBRIDSUS-7520)¶

Fixe a problem in which the "ERROR: Error evaluating action for "tr2", Not allowed access to partition." occurred when the record inserted in a partitioned table would not move to a partition other than the one where INSERT was executed due to the UPDATE statement of the trigger.

CREATE TABLE emp (store_id INT NOT NULL)
PARTITION BY RANGE (store_id) (
  PARTITION P1 VALUES LESS THAN (10 ),
  PARTITION P2 VALUES LESS THAN (20 )
);

CREATE TRIGGER tr2 AFTER INSERT ON emp EXECUTE UPDATE emp SET store_id = store_id + 10 WHERE store_id = obj.store_id;
INSERT INTO emp VALUES (5);

Table recreation failed after the creation and rollback of a partitioned table with an index (CUBRIDSUS-7560)¶

Fix a problem in which table recreation failed with the message "ERROR: Partition failed." when recreating the same partitioned table after the creation and rollback of a partitioned table with an index.

CREATE TABLE tbl(col1 varchar(10), index (col1))
PARTYTION BY LIST(col1) (
  PARTITION p1 values in ('cubrid', 'mysql', 'abc')
);

Error that occurred when executing loaddb with data files of a partitioned table (CUBRIDSUS-5815)¶

Fix a problem in which loaddb execution failed with the message "Partitioned failed" if data exists in the partitioned table location when executing loaddb with data files containing a partitioned table.

// Partitioned table
CREATE TABLE record (
  host_year INTEGER NOT NULL,
  event_code INTEGER NOT NULL,
  score VARCHAR(20)
)
PARTITION BY RANGE (host_year) (
  PARTITION before_1996 VALUES LESS THAN (1996),
  PARTITION after_1996 VALUES LESS THAN MAXVALUE
);

// Data file for loaddb. It was changed so that data after class [record] can exist.
%class [record] ([host_year] [event_code] [score])
1992 20288 '22.3'
2000 20101 '04:04.5'
2004 20341 '272.5'

Fix an error in which redefining range partitions would fail when the existing partition had the LESS THAN MAXVALUE condition (CUBRIDSUS-6379)¶

The new version has fixed an error in which redefining range partitions would fail when the existing partition had the LESS THAN MAXVALUE condition.

CREATE TABLE t1(id int)
PARTITION BY RANGE (id) (
  PARTITION l10 VALUES LESS THAN (10),
  PARTITION l100 VALUES LESS THAN (100),
  PARTITION lar VALUES LESS THAN MAXVALUE
);

ALTER TABLE t1 REORGANIZE PARTITION l100,lar
INTO (PARTITION lar VALUES LESS THAN MAXVALUE);

Partition pruning error with regard to the IN conditional clause in a list partitioned table (CUBRIDSUS-9189)¶

Fix a problem in which partition pruning would be repeated infinitely when the IN conditional clause contained two or more partitions in a list partitioned table.

DELETE CASCADE would not operate in a partitioned table with a foreign key (CUBRIDSUS-8085)¶

Fix a problem in which, when there was a partitioned table with a foreign key specifying the action of DELETE CASCADE, the "ERROR: The instance having the foreign key 'f' cannot be dropped." would occur in the partitioned table with a foreign key when deleting the record of the table.

CREATE TABLE dp(i INT PRIMARY KEY);
INSERT INTO dp SELECT ROWNUM FROM db_class LIMIT 40;

CREATE TABLE f(i INTEGER , orderdatekey INTEGER NOT NULL)
PARTITION BY range(i) (
  PARTITION p0 VALUES LESS THAN (200),
  PARTITION p1 VALUES LESS THAN (400),
  PARTITION p2 VALUES LESS THAN (600),
  PARTITION p3 VALUES LESS THAN maxvalue
);

ALTER TABLE f ADD CONSTRAINT FOREIGN KEY f(i) REFERENCES dp(i) ON DELETE CASCADE;
INSERT INTO f SELECT ROWNUM , ROWNUM FROM db_class LIMIT 40;

-- record (4) should be deleted in both table dp and f;
DELETE FROM dp WHERE i=4;

Server process would be abnormally terminated when executing SELECT after the backup of a database with a range-partitioned table with AUTO_INCREMENT columns (CUBRIDSUS-6390)¶

Fix a problem in which the server process would be abnormally terminated when executing SELECT after the backup of a database with a range-partitioned table with AUTO_INCREMENT columns.

CREATE TABLE u1(id INT AUTO_INCREMENT,v VARCHAR(5))
PARTITION BY RANGE(id) (
  PARTITION l5 VALUES LESS THAN (5),
  PARTITION l10 VALUES LESS THAN (10),
  PARTITION l20 VALUES LESS THAN (20),
  PARTITION l100 VALUES LESS THAN (100)
);

INSERT INTO u1 VALUES (NULL,''),(6,''),(NULL,'');

$ cubrid backupdb testdb

Server process would be abnormally terminated when executing a query to a range partitioned table with AUTO_INCREMENT columns (CUBRIDSUS-6373)¶

Fix a problem in which the server process would be abnormally terminated when executing a query to a range-partitioned table with AUTO_INCREMENT columns.

CREATE TABLE u(id int AUTO_INCREMENT,v varchar(5))
PARTITION BY RANGE (id) (
  PARTITION l5 VALUES LESS THAN (5),
  PARTITION l10 VALUES LESS than (10),
  PARTITION l20 VALUES LESS than (20),
  PARTITION l100 VALUES LESS than (100)
);

INSERT INTO u VALUES(0,';jf;dfj iouer'),(5,' fdfd'),(10,'dfd '),(15,'fdf'),(20,'a');

Index scan would not operate because the statistical information on partitions of a table was not updated (CUBRIDSUS-7741)¶

Fix a problem in which index scan would not operate when executing a query due to an error in which statistical information on each partition of a table would not be updated when updating the statistical information of the partitioned table by the UPDATE STATISTICS statement.

After deleting the value in a partitioned table when the auto commit mode was OFF, the value was outputted when searching the record with OID (CUBRIDSUS-2183)¶

The new version has fixed a problem in which, after deleting the value in a partitioned table when the auto commit mode was OFF, the value was outputted when searching the record with OID.

;autocommit off

CREATE TABLE tbl (id INT)
PARTITION BY RANGE (id + 1) (
  PARTITION p0 VALUES LESS THAN (2),
  PARTITION p1 VALUES LESS THAN MAXVALUE
);

INSERT INTO tbl VALUES (-1);
INSERT INTO tbl values (3);
INSERT INTO tbl values (99) into :xx;

SELECT :xx.id FROM db_root;
COMMIT;

SELECT :xx.id FROM db_root;
DELETE FROM tbl WHERE id = 99;
SELECT :xx.id FROM db_root;

// If query below was executed, the value before deletion was outputted even though record had been deleted like query above.
SELECT :xx.id FROM db_root;

Re-partitioning a table by ALTER TABLE ... PARTITION would not operate normally (CUBRIDSUS-1408)¶

Fix a problem in which, when repartitioning a table by ALTER TABLE ... PARTITION, the existing partition information would not be deleted.

CREATE TABLE participant2 ( host_year INT, nation CHAR(3), gold INT, silver INT, bronze INT)
PARTITION BY RANGE (host_year) (
  PARTITION before_2000 VALUES LESS THAN (2000),
  PARTITION before_2008 VALUES LESS THAN (2008)
);

ALTER TABLE participant2 REORGANIZE PARTITION before_2000 INTO (
  PARTITION before_1996 VALUES LESS THAN (1996),
  PARTITION before_2000 VALUES LESS THAN (2000)
);

Partitioning would not be executed when creating a table with many partitions through the loaddb utility (CUBRIDSUS-5833)¶

Fix a problem in which partitions would not be created normally when creating a table with many partitions through the loaddb utility.

ALTER CLASS [col_day]
PARTITION BY LIST ( [yyyymmdd] ) (
  PARTITION [p_20110701] VALUES IN ('20110701'),
  PARTITION [p_20110702] VALUES IN ('20110702'),
  PARTITION [p_20110703] VALUES IN ('20110703'),
  PARTITION [p_20110704] VALUES IN ('20110704'),
  PARTITION [p_20110705] VALUES IN ('20110705'),
  PARTITION [p_20110706] VALUES IN ('20110706'),
  PARTITION [p_20110707] VALUES IN ('20110707'),
  ....
  PARTITION [p_20111231] VALUES IN ('20111231')
);

Error when executing a query using a MAX function or ORDER BY DESC in a table in which data was deleted after the creation of an index (CUBRIDSUS-7988)¶

Fixed a problem in which, after an index was created while data being in the table and the entire data were deleted, the "ERROR: An I/O error occurred while reading page 65536 of volume (null).... Bad file descriptor" would occur when executing a query to find the last leaf page, such as using a MAX function or ORDER BY DESC in the table.

CREATE TABLE tb2 ( col1 INT PRIMARY KEY, col2 VARCHAR(16));
INSERT INTO tb2 VALUES (1, '1');
CREATE INDEX i_tb2 ON tb2(col1, col2);
DELETE FROM tb2;
SELECT * FROM tb2 ORDER BY 1 DESC,2 DESC;

Malfunction when executing an aggregate function in a column with a PREFIX index (CUBRIDSUS-6579)¶

Fix a problem in which the "ERROR: No error message available." would occur if the type of the aggregate target column was CHAR and incorrect results would be outputted when the type was VARCHAR, when executing aggregate function in a column with a PREFIX index.

CREATE TABLE t1 (id int PRIMARY KEY, b char(16), INDEX(b(4)));
INSERT INTO t1 VALUES (1, 'xxxxbbbb'), (2, 'xxxxaaaa');

-- When the query below was executed, an error occurred.
SELECT MAX(b) FROM t1;

CREATE TABLE t1 (id int PRIMARY KEY, b varchar(16), INDEX(b(4)));
INSERT INTO t1 VALUES (1, 'xxxxbbbb'), (2, 'xxxxaaaa');

-- When the query below was executed, 'xxxx' was outputted.
SELECT MAX(b) FROM t1;

Modify to share B-Tree if there is already a created index with the same key when creating an index (CUBRIDSUS-6430)¶

In the previous version, an error (cannot create an index) occurred when an index with the same key already existed when creating an index. The new version has been modified to share the existing index in this case rather than creating another index physically. As in the following example, it is not necessary to create B-Tree for the foreign key separately because the index has already been defined in the b column which creates a foreign key.

CREATE TABLE t1 (
  a INT PRIMARY KEY,
  b INT, KEY(b),
  CONSTRAINT fk FOREIGN KEY (b) REFERENCES t1 (a)
);