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don't let current_thd to point to a destroyed THD

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* reset current_thd in THD::~THD, otherwise my_malloc_size_cb_func()
  might access THD after it was destroyed.
* remove now redundant set_current_thd(0) calls that follow delete thd.
This commit is contained in:
Sergei Golubchik 2015-02-03 18:19:56 +01:00
commit bfe703a458
11 changed files with 1 additions and 25 deletions
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sql/sql_plugin.cc
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@ -1775,7 +1775,6 @@ static void plugin_load(MEM_ROOT *tmp_root)
end:
/* Remember that we don't have a THD */
delete new_thd;
set_current_thd(0);
DBUG_VOID_RETURN;
}