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bc4a456758
Generalized support for auto-updated and/or auto-initialized timestamp and datetime columns. This patch is a reimplementation of MySQL's "WL#5874: CURRENT_TIMESTAMP as DEFAULT for DATETIME columns". In order to ease future merges, this implementation reused few function and variable names from MySQL's patch, however the implementation is quite different. TODO: The only unresolved problem in this patch is the semantics of LOAD DATA for TIMESTAMP and DATETIME columns in the cases when there are missing or NULL columns. I couldn't fully comprehend the logic behind MySQL's behavior and its relationship with their own documentation, so I left the results to be more consistent with all other LOAD cases. The problematic test cases can be seen by running the test file function_defaults, and observing the test case differences. Those were left on purpose for discussion.
23 lines
600 B
Text
23 lines
600 B
Text
--echo #
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--echo # Test of function defaults for any server, including embedded.
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--echo #
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--source include/have_innodb.inc
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--echo #
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--echo # Function defaults run 1. No microsecond precision.
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--echo #
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let $current_timestamp=CURRENT_TIMESTAMP;
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let $now=NOW();
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let $timestamp=TIMESTAMP;
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let $datetime=DATETIME;
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source 'include/function_defaults.inc';
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--echo #
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--echo # Function defaults run 2. Six digits scale on seconds precision.
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--echo #
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let $current_timestamp=CURRENT_TIMESTAMP(6);
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let $now=NOW(6);
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let $timestamp=TIMESTAMP(6);
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let $datetime=DATETIME(6);
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source 'include/function_defaults.inc';
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