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SQL(misc): Query_arena_stmt RAII

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This commit is contained in:
Aleksey Midenkov
2017-04-27 10:24:16 +03:00
parent 1e8a81dea6
commit 122ffa2211
4 changed files with 32 additions and 12 deletions
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13
sql/sql_class.cc
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@ -7425,3 +7425,16 @@ bool Discrete_intervals_list::append(Discrete_interval *new_interval)
}
#endif /* !defined(MYSQL_CLIENT) */
Query_arena_stmt::Query_arena_stmt(THD *_thd) :
thd(_thd)
{
arena= thd->activate_stmt_arena_if_needed(&backup);
}
Query_arena_stmt::~Query_arena_stmt()
{
if (arena)
thd->restore_active_arena(arena, &backup);
}