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2ccf247e93
* rename all debugging related command-line options and variables to start from "debug-", and made them all OFF by default. * replace "MySQL" with "MariaDB" in error messages * "Cast ... converted ... integer to it's ... complement" is now a note, not a warning * @@query_cache_strip_comments now has a session scope, not global.
49 lines
1.6 KiB
Plaintext
49 lines
1.6 KiB
Plaintext
SET @start_global_value = @@global.sync_relay_log;
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SELECT @start_global_value;
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@start_global_value
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0
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select @@global.sync_relay_log;
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@@global.sync_relay_log
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0
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select @@session.sync_relay_log;
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ERROR HY000: Variable 'sync_relay_log' is a GLOBAL variable
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show global variables like 'sync_relay_log';
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Variable_name Value
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sync_relay_log 0
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show session variables like 'sync_relay_log';
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Variable_name Value
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sync_relay_log 0
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select * from information_schema.global_variables where variable_name='sync_relay_log';
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VARIABLE_NAME VARIABLE_VALUE
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SYNC_RELAY_LOG 0
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select * from information_schema.session_variables where variable_name='sync_relay_log';
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VARIABLE_NAME VARIABLE_VALUE
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SYNC_RELAY_LOG 0
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set global sync_relay_log=1;
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select @@global.sync_relay_log;
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@@global.sync_relay_log
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1
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set session sync_relay_log=1;
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ERROR HY000: Variable 'sync_relay_log' is a GLOBAL variable and should be set with SET GLOBAL
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set global sync_relay_log=1.1;
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ERROR 42000: Incorrect argument type to variable 'sync_relay_log'
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set global sync_relay_log=1e1;
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ERROR 42000: Incorrect argument type to variable 'sync_relay_log'
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set global sync_relay_log="foo";
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ERROR 42000: Incorrect argument type to variable 'sync_relay_log'
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set global sync_relay_log=0;
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select @@global.sync_relay_log;
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@@global.sync_relay_log
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0
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set global sync_relay_log=cast(-1 as unsigned int);
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Warnings:
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Note 1105 Cast to unsigned converted negative integer to it's positive complement
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Warning 1292 Truncated incorrect sync_relay_log value: '18446744073709551615'
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select @@global.sync_relay_log;
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@@global.sync_relay_log
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4294967295
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SET @@global.sync_relay_log = @start_global_value;
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SELECT @@global.sync_relay_log;
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@@global.sync_relay_log
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0
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