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4a9a4bb903
The pt-online-schema-change tool was not properly handling RENAME COLUMN syntax (MySQL 8.0+), causing renamed columns to be excluded from the data copy operation. This resulted in NULL values for renamed columns after the schema change. The issue was in the find_renamed_cols() function which only supported CHANGE COLUMN syntax but not RENAME COLUMN syntax. Added support for RENAME COLUMN parsing to properly detect column renames and include them in the common_cols list for data copying. Fixes: PT-2418
19 lines
680 B
SQL
19 lines
680 B
SQL
-- Test case for timestamp NULL issue during column rename
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-- This reproduces the issue where 't' column values become NULL after CHANGE COLUMN
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DROP DATABASE IF EXISTS test;
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CREATE DATABASE test;
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USE test;
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CREATE TABLE `joinit` (
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`i` int(11) NOT NULL AUTO_INCREMENT,
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`s` varchar(64) DEFAULT NULL,
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`t1` time DEFAULT NULL,
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`g` int(11) NOT NULL,
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PRIMARY KEY (`i`)
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);
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-- Insert initial data with timestamps
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INSERT INTO joinit VALUES (NULL, uuid(), time(now()), (FLOOR( 1 + RAND( ) *60 )));
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INSERT INTO joinit SELECT NULL, uuid(), time(now()), (FLOOR( 1 + RAND( ) *60 )) FROM joinit;
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INSERT INTO joinit SELECT NULL, uuid(), time(now()), (FLOOR( 1 + RAND( ) *60 )) FROM joinit; |