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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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5
mysql-test/r/drop_debug.result
View File

@@ -3,13 +3,12 @@
# -- Bug#43138: DROP DATABASE failure does not clean up message list.
# --
DROP DATABASE IF EXISTS mysql_test;
CREATE DATABASE mysql_test;
CREATE TABLE mysql_test.t1(a INT);
CREATE TABLE mysql_test.t2(b INT);
CREATE TABLE mysql_test.t3(c INT);
SET @save_dbug = @@debug_dbug;
SET SESSION debug_dbug= "+d,bug43138";
DROP DATABASE mysql_test;
@@ -18,7 +17,7 @@ Error 1051 Unknown table 't1'
Error 1051 Unknown table 't2'
Error 1051 Unknown table 't3'
SET SESSION debug_dbug= "-d,bug43138";
SET SESSION debug_dbug=@save_dbug;
# --
# -- End of Bug#43138.