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Bug#40363 Bug 20023 is not fixed on 5.0

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This is a back port from 5.1 to 5.0.

Fix for BUG 20023: mysql_change_user() resets the value
of SQL_BIG_SELECTS.
  
The bug was that SQL_BIG_SELECTS was not properly set
in COM_CHANGE_USER.
  
The fix is to update SQL_BIG_SELECTS properly.



sql/sql_class.cc:
  Update THD::options with the respect to SQL_BIG_SELECTS
  in COM_CHANGE_USER.
tests/mysql_client_test.c:
  Add a test case BUG#20023.
This commit is contained in:
Kristofer Pettersson
2009-03-05 13:37:46 +01:00
parent 0ed8e66e4b
commit ac821c6570
2 changed files with 179 additions and 0 deletions
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6
sql/sql_class.cc
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@@ -341,6 +341,12 @@ void THD::init(void)
if (variables.sql_mode & MODE_NO_BACKSLASH_ESCAPES)
server_status|= SERVER_STATUS_NO_BACKSLASH_ESCAPES;
options= thd_startup_options;
if (variables.max_join_size == HA_POS_ERROR)
options |= OPTION_BIG_SELECTS;
else
options &= ~OPTION_BIG_SELECTS;
transaction.all.modified_non_trans_table= transaction.stmt.modified_non_trans_table= FALSE;
open_options=ha_open_options;
update_lock_default= (variables.low_priority_updates ?