Method restore_lex

sql/sp_head.cc:328–370

bool sp_head::restore_lex(THD *thd)
{
  LEX *sublex= thd->lex;

  sublex->set_trg_event_type_for_tables();

  LEX *oldlex= (LEX *) m_parser_data.pop_lex();

  if (!oldlex)
    return false; // Nothing to restore

  /* If this substatement is unsafe, the entire routine is too. */
  DBUG_PRINT("info", ("lex->get_stmt_unsafe_flags: 0x%x",
                      thd->lex->get_stmt_unsafe_flags()));
  unsafe_flags|= sublex->get_stmt_unsafe_flags();

  /*
    Add routines which are used by statement to respective set for
    this routine.
  */
 // if (sp_update_sp_used_routines(&m_sroutines, &sublex->sroutines))
 //   return true;

  /* If this substatement is a update query, then mark MODIFIES_DATA */
  if (is_update_query(sublex->sql_command))
    m_flags|= MODIFIES_DATA;

  /*
    Merge tables used by this statement (but not by its functions or
    procedures) to multiset of tables used by this routine.
  */
  merge_table_list(thd, sublex->query_tables, sublex);

  if (!sublex->sp_lex_in_use)
  {
    sublex->sphead= NULL;
    lex_end(sublex);
    delete sublex;
  }

  thd->lex= oldlex;
  return false;
}