diff options
Diffstat (limited to 'sql/sp_head.h')
| -rw-r--r-- | sql/sp_head.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sql/sp_head.h b/sql/sp_head.h index 7f50f2a8202..10eada43721 100644 --- a/sql/sp_head.h +++ b/sql/sp_head.h @@ -458,6 +458,28 @@ public: virtual int execute(THD *thd, uint *nextp) = 0; + /** + Execute <code>open_and_lock_tables()</code> for this statement. + Open and lock the tables used by this statement, as a pre-requisite + to execute the core logic of this instruction with + <code>exec_core()</code>. + If this statement fails, the next instruction to execute is also returned. + This is useful when a user defined SQL continue handler needs to be + executed. + @param thd the current thread + @param tables the list of tables to open and lock + @param nextp the continuation instruction, returned to the caller if this + method fails. + @return zero on success, non zero on failure. + */ + int exec_open_and_lock_tables(THD *thd, TABLE_LIST *tables, uint *nextp); + + /** + Get the continuation destination of this instruction. + @param nextp the continuation destination (output) + */ + virtual void get_cont_dest(uint *nextp); + /* Execute core function of instruction after all preparations (e.g. setting of proper LEX, saving part of the thread context have been @@ -722,6 +744,8 @@ public: virtual void set_destination(uint old_dest, uint new_dest) = 0; + virtual void get_cont_dest(uint *nextp); + protected: sp_instr *m_optdest; // Used during optimization |