database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-27 18:02:13 +03:00
Code Activity

[SHOW] EXPLAIN UPDATE/DELETE, code re-structuring

Browse Source 
- Handle statements inside SPs:
  = regular statements
  = SET command, which does not have its own statement.

- Handle execution of subquery from range optimizer: 
  allocate subquery QPFs on the same MEM_ROOT as the whole 
  query plan was allocated.
This commit is contained in:
Sergey Petrunya
2013-06-21 13:26:53 +04:00
parent ab4a13b2b9
commit af5e128e50
8 changed files with 33 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
sql/sql_parse.cc
View File

@ -598,10 +598,7 @@ static void handle_bootstrap_impl(THD *thd)
#if defined(ENABLED_PROFILING)
thd->profiling.finish_current_query();
#endif
//
delete thd->lex->query_plan_footprint;
thd->lex->query_plan_footprint= NULL;
//
delete_qpf_query(thd->lex);
if (bootstrap_error)
break;
@ -1523,8 +1520,7 @@ void log_slow_statement(THD *thd)
{
DBUG_ENTER("log_slow_statement");
delete thd->lex->query_plan_footprint;
thd->lex->query_plan_footprint= NULL;
delete_qpf_query(thd->lex);
/*
The following should never be true with our current code base,
@ -2188,8 +2184,7 @@ mysql_execute_command(THD *thd)
thd->mdl_context.release_transactional_locks();
}
DBUG_ASSERT(!thd->lex->query_plan_footprint);
thd->lex->query_plan_footprint= new QPF_query;
create_qpf_query(thd->lex, thd->mem_root);
#ifndef DBUG_OFF
if (lex->sql_command != SQLCOM_SET_OPTION)