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55 lines
2.0 KiB
55 lines
2.0 KiB
2 months ago
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create
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definer = `mysql.sys`@localhost function sys.format_statement(statement longtext) returns longtext comment '
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Description
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-----------
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Formats a normalized statement, truncating it if it is > 64 characters long by default.
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To configure the length to truncate the statement to by default, update the `statement_truncate_len`
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variable with `sys_config` table to a different value. Alternatively, to change it just for just
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your particular session, use `SET @sys.statement_truncate_len := <some new value>`.
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Useful for printing statement related data from Performance Schema from
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the command line.
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Parameters
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-----------
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statement (LONGTEXT):
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The statement to format.
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Returns
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-----------
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LONGTEXT
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Example
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-----------
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mysql> SELECT sys.format_statement(digest_text)
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-> FROM performance_schema.events_statements_summary_by_digest
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-> ORDER by sum_timer_wait DESC limit 5;
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+-------------------------------------------------------------------+
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| sys.format_statement(digest_text) |
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+-------------------------------------------------------------------+
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| CREATE SQL SECURITY INVOKER VI ... KE ? AND `variable_value` > ? |
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| CREATE SQL SECURITY INVOKER VI ... ait` IS NOT NULL , `esc` . ... |
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| CREATE SQL SECURITY INVOKER VI ... ait` IS NOT NULL , `sys` . ... |
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| CREATE SQL SECURITY INVOKER VI ... , `compressed_size` ) ) DESC |
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| CREATE SQL SECURITY INVOKER VI ... LIKE ? ORDER BY `timer_start` |
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+-------------------------------------------------------------------+
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5 rows in set (0.00 sec)
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' deterministic sql security invoker no sql
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BEGIN
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-- Check if we have the configured length, if not, init it
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IF @sys.statement_truncate_len IS NULL THEN
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SET @sys.statement_truncate_len = sys_get_config('statement_truncate_len', 64);
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END IF;
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IF CHAR_LENGTH(statement) > @sys.statement_truncate_len THEN
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RETURN REPLACE(CONCAT(LEFT(statement, (@sys.statement_truncate_len/2)-2), ' ... ', RIGHT(statement, (@sys.statement_truncate_len/2)-2)), '\n', ' ');
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ELSE
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RETURN REPLACE(statement, '\n', ' ');
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END IF;
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END;
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