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The problem was that the CSV storage engine does not support NULL fields, yet in some early 5.1 version the log tables (general_log and slow_log) were created with null fields. On top of this, when altering a CSV table column, all fields of the table must be NOT NULL otherwise the alteration fails. The solution is to ensure that during upgrade all columns of the log tables are NOT NULL. mysql-test/r/log_tables_upgrade.result: Add test case result for Bug#49823. mysql-test/std_data/bug49823.CSV: Sample data for test. mysql-test/std_data/bug49823.frm: Add a CSV table which mimics the general_log table, except that it contains a nullable column. mysql-test/t/log_tables_upgrade.test: Add test case for Bug#49823. scripts/mysql_system_tables_fix.sql: Ensure that all columns of the log tables are NOT NULL.
48 lines
1.9 KiB
Plaintext
48 lines
1.9 KiB
Plaintext
#
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# Bug#49823: mysql_upgrade fatal error due to general_log / slow_low CSV NULL
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#
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USE test;
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SET @saved_general_log = @@GLOBAL.general_log;
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SET GLOBAL general_log = OFF;
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USE mysql;
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FLUSH TABLES;
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REPAIR TABLE test.bug49823;
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Table Op Msg_type Msg_text
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test.bug49823 repair status OK
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RENAME TABLE general_log TO renamed_general_log;
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RENAME TABLE test.bug49823 TO general_log;
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mtr.global_suppressions OK
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mtr.test_suppressions OK
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mysql.columns_priv OK
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mysql.db OK
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mysql.event OK
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mysql.func OK
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mysql.general_log
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Error : You can't use locks with log tables.
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status : OK
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mysql.help_category OK
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mysql.help_keyword OK
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mysql.help_relation OK
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mysql.help_topic OK
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mysql.host OK
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mysql.ndb_binlog_index OK
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mysql.plugin OK
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mysql.proc OK
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mysql.procs_priv OK
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mysql.renamed_general_log OK
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mysql.servers OK
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mysql.slow_log
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Error : You can't use locks with log tables.
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status : OK
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mysql.tables_priv OK
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mysql.time_zone OK
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mysql.time_zone_leap_second OK
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mysql.time_zone_name OK
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mysql.time_zone_transition OK
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mysql.time_zone_transition_type OK
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mysql.user OK
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DROP TABLE general_log;
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RENAME TABLE renamed_general_log TO general_log;
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SET GLOBAL general_log = @saved_general_log;
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USE test;
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