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17 lines
621 B
Text
17 lines
621 B
Text
--- instant_alter_limit.result
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+++ instant_alter_limit,32k.reject
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@@ -44,6 +44,13 @@
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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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ALTER DATABASE test CHARACTER SET utf8mb4 COLLATE utf8mb4_uca1400_ai_ci;
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