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MDEV-19455: Avoid SET DEBUG_DBUG='-d,...' construct

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Apply the correct pattern for debug instrumentation:

SET @save_dbug=@@debug_dbug;
SET debug_dbug='+d,...';
...
SET debug_dbug=@save_dbug;

Numerous tests use statements of the form

SET debug_dbug='-d,...';

which will inadvertently enable all DBUG tracing output,
causing unnecessary waste of resources.
This commit is contained in:
Marko Mäkelä
2019-10-11 14:02:35 +03:00
parent db9a4d928d
commit 4ebaf81360
21 changed files with 233 additions and 224 deletions
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3
mysql-test/r/sp-code.result
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@ -923,6 +923,7 @@ END;
CLOSE c;
SELECT a INTO @foo FROM t1 LIMIT 1; # Clear warning stack
END|
SET @save_dbug = @@debug_dbug;
SET SESSION debug_dbug="+d,bug23032_emit_warning";
CALL p1();
Warning found!
@ -942,7 +943,7 @@ End of Result Set found!
Level Code Message
Warning 1105 Unknown error
Error 1329 No data - zero rows fetched, selected, or processed
SET SESSION debug_dbug="-d,bug23032_emit_warning";
SET SESSION debug_dbug=@save_dbug;
DROP PROCEDURE p1;
DROP TABLE t1;
#