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https://github.com/MariaDB/server.git
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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.
42 lines
1.5 KiB
Plaintext
42 lines
1.5 KiB
Plaintext
SET @start_global_value = @@global.debug_crc_break;
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select @@global.debug_crc_break;
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@@global.debug_crc_break
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0
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select @@session.debug_crc_break;
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ERROR HY000: Variable 'debug_crc_break' is a GLOBAL variable
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show global variables like 'debug_crc_break';
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Variable_name Value
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debug_crc_break 0
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show session variables like 'debug_crc_break';
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Variable_name Value
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debug_crc_break 0
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select * from information_schema.global_variables where variable_name='debug_crc_break';
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VARIABLE_NAME VARIABLE_VALUE
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DEBUG_CRC_BREAK 0
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select * from information_schema.session_variables where variable_name='debug_crc_break';
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VARIABLE_NAME VARIABLE_VALUE
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DEBUG_CRC_BREAK 0
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set global debug_crc_break=1;
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select @@global.debug_crc_break;
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@@global.debug_crc_break
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1
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set session debug_crc_break=1;
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ERROR HY000: Variable 'debug_crc_break' is a GLOBAL variable and should be set with SET GLOBAL
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set global debug_crc_break=1.1;
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ERROR 42000: Incorrect argument type to variable 'debug_crc_break'
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set global debug_crc_break=1e1;
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ERROR 42000: Incorrect argument type to variable 'debug_crc_break'
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set global debug_crc_break="foo";
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ERROR 42000: Incorrect argument type to variable 'debug_crc_break'
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set global debug_crc_break=0;
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select @@global.debug_crc_break;
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@@global.debug_crc_break
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0
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set global debug_crc_break=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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select @@global.debug_crc_break;
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@@global.debug_crc_break
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18446744073709551615
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SET @@global.debug_crc_break = @start_global_value;
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