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ed7534c42c
It returns the DATETIME data type (which is the closest to Oracle's DATE). The following Oracle formats are supported: Truncate to day: DD, DDD,J Truncate to month: MM,MON,MONTH,RM Truncate to Year: SYEAR,SYYYY,Y,YEAR,YY,YYY,YYYY TRUNC(date) is same as TRUNC(date, "DD") This patch incorporates a fix for: MDEV-37414 SIGSEGV in Binary_string::c_ptr | Item_func_trunc::get_date Fixing the problem that the code did not take into account that args[1] can return SQL NULL.
121 lines
3.4 KiB
Text
121 lines
3.4 KiB
Text
--echo # Test for function trunc()
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SET NAMES utf8mb4;
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--echo #
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--echo # Simple test
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--echo #
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select trunc('2025-07-27 12:01:02.123');
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select trunc('2025-07-27 12:01:02.123','YY');
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select trunc('2025-07-27 12:01:02.123','MM');
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select trunc('2025-07-27 12:01:02.123','DD');
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select trunc('hello');
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select trunc(1);
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--echo #
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--echo # The returned data type is DATETIME (the closest to Oracle's DATE)
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--echo #
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CREATE TABLE t1 AS SELECT
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trunc('2025-07-27 12:01:02','YYYY') AS c0,
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trunc('2025-07-27 12:01:02.1','YYYY') AS c1,
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trunc('2025-07-27 12:01:02.12','YYYY') AS c2,
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trunc('2025-07-27 12:01:02.123','YYYY') AS c3,
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trunc('2025-07-27 12:01:02.1234','YYYY') AS c4,
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trunc('2025-07-27 12:01:02.12345','YYYY') AS c5,
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trunc('2025-07-27 12:01:02.123456','YYYY') AS c6,
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trunc('2025-07-27 12:01:02.1234567','YYYY') AS c7;
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SHOW CREATE TABLE t1;
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DROP TABLE t1;
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--echo # Ensure that trunc table name and column can still be used
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create table trunc (trunc int);
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insert into trunc (trunc) values (1);
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select trunc from trunc;
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drop table trunc;
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--echo #
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--echo # Test all format variations
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--echo #
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CREATE TABLE t1(c2 datetime, c3 date, c4 timestamp);
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INSERT INTO t1 VALUES ('2021-11-12 00:23:12', '2021-11-12', '2021-11-12 00:23:12');
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INSERT INTO t1 VALUES ('0000-09-02 00:00:00', '0000-09-02', '1980-09-02 00:00:00');
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INSERT INTO t1 VALUES ('9999-09-02', '9999-09-02', '1980-09-02');
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create table t2 (format varchar(5)) engine=aria;
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insert into t2 values ('DD'),('DDD'),('J'),('MM'),('MON'),('MONTH'),('RM'),('SYEAR'),('SYYYY'),('Y'),('YEAR'),('YY'),('YYY'),('YYYY'), ('ZZZ');
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SELECT format,trunc(c2,format),trunc(c3,format),trunc(c4,format) from t2 straight_join t1;
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--echo #
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--echo # Test wrong usage
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--echo #
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select trunc('2021-11-12 00:23:12','');
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select trunc('2021-11-12 00:23:12','ZZZZ');
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select trunc('','DD');
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--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
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select trunc();
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select trunc(1);
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--error ER_WRONG_PARAMCOUNT_TO_NATIVE_FCT
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select trunc(1,2,3);
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drop table t1,t2;
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--error ER_ILLEGAL_PARAMETER_DATA_TYPE_FOR_OPERATION
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select trunc('2021-11-12 00:23:12', POINT(1,1));
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--error ER_ILLEGAL_PARAMETER_DATA_TYPE_FOR_OPERATION
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select trunc('2021-11-12 00:23:12', ROW(1,1));
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--error ER_ILLEGAL_PARAMETER_DATA_TYPE_FOR_OPERATION
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select trunc(POINT(1,1), 'YYYY');
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--error ER_ILLEGAL_PARAMETER_DATA_TYPE_FOR_OPERATION
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select trunc(ROW(1,1), 'YYYY');
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--error ER_ILLEGAL_PARAMETER_DATA_TYPE_FOR_OPERATION
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select trunc(POINT(1,1));
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--error ER_ILLEGAL_PARAMETER_DATA_TYPE_FOR_OPERATION
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select trunc(ROW(1,1));
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--echo #
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--echo # Testing non-ASCII input in the format
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--echo #
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SELECT trunc('2021-11-12 00:23:12','ŸŸŸŸ');
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--echo #
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--echo # Fractional digits outside of the supported limit of 6 digits
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--echo # are always truncated even if TIME_ROUND_FRACTIONAL is set.
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--echo #
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SET sql_mode=TIME_ROUND_FRACTIONAL;
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SELECT trunc('2001-12-31 23:59:59.9999999','YYYY') AS c1;
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SELECT trunc('2001-12-31 23:59:59.9999999','MM') AS c1;
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SELECT trunc('2001-12-31 23:59:59.9999999','DD') AS c1;
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SET sql_mode=DEFAULT;
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--echo #
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--echo # TIME argument is converted to DATE using CURRENT_DATE
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--echo #
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SET timestamp=unix_timestamp('2001-12-31 10:00:00');
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SELECT trunc(time'24:00:00','YYYY');
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SELECT trunc(time'24:00:00','MM');
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SELECT trunc(time'24:00:00','DD');
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SET timestamp=DEFAULT;
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--echo #
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--echo # MDEV-37414 SIGSEGV in Binary_string::c_ptr | Item_func_trunc::get_date
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--echo #
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SELECT trunc(time'24:00:00',NULL);
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SET SQL_MODE=EMPTY_STRING_IS_NULL;
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SELECT trunc(time'24:00:00','');
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SET SQL_MODE=DEFAULT;
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