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fdb37d084b
- Problem is that failure of inplace DDL tries to access the
uninitialized column. This is caused by MDEV-19606 (commit 0274ab1de3).
Fix is that InnoDB should use column while freeing the index when index
is completely initialized.
16 lines
619 B
Text
16 lines
619 B
Text
--- instant_alter_limit.result 2020-05-26 18:01:27.377946439 +0530
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+++ instant_alter_limit,32k.reject 2020-05-26 19:59:19.743877366 +0530
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@@ -43,5 +43,12 @@
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FROM information_schema.global_status
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WHERE variable_name = 'innodb_instant_alter_column';
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instants
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-502
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+506
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DROP TABLE t;
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+#
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+# MDEV-21787 Alter table failure tries to access uninitialized column
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+#
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+CREATE TABLE t1(f1 INT PRIMARY KEY, f2 TEXT GENERATED ALWAYS AS (SUBSTR(f4, 1, 400)), f3 VARCHAR(500), f4 TEXT)ENGINE=InnoDB ROW_FORMAT=Compact;
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+ALTER TABLE t1 ADD UNIQUE KEY (f2(9));
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+ALTER TABLE t1 ADD COLUMN f5 TEXT, ALGORITHM=INPLACE;
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+DROP TABLE t1;
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