Drizzled Public API Documentation

delete.cc
1 /* -*- mode: c++; c-basic-offset: 2; indent-tabs-mode: nil; -*-
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4  * Copyright (C) 2009 Sun Microsystems, Inc.
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19  */
20 
21 #include <config.h>
22 #include <drizzled/show.h>
23 #include <drizzled/session.h>
24 #include <drizzled/lock.h>
25 #include <drizzled/probes.h>
26 #include <drizzled/statement/delete.h>
27 #include <drizzled/sql_lex.h>
28 
29 namespace drizzled
30 {
31 
33 {
34  DRIZZLE_DELETE_START(session().getQueryString()->c_str());
35  TableList *first_table= (TableList *) lex().select_lex.table_list.first;
36  TableList *all_tables= lex().query_tables;
37  Select_Lex *select_lex= &lex().select_lex;
38  Select_Lex_Unit *unit= &lex().unit;
39  assert(first_table == all_tables && first_table != 0);
40  assert(select_lex->offset_limit == 0);
41  unit->set_limit(select_lex);
42 
43  if (session().wait_if_global_read_lock(0, 1))
44  {
45  return true;
46  }
47 
48  bool res= delete_query(&session(), all_tables, select_lex->where,
49  &select_lex->order_list,
50  unit->select_limit_cnt, select_lex->options,
51  false);
52  /*
53  Release the protection against the global read lock and wake
54  everyone, who might want to set a global read lock.
55  */
56  session().startWaitingGlobalReadLock();
57 
58  return res;
59 }
60 
61 } /* namespace drizzled */
bool delete_query(Session *session, TableList *table_list, COND *conds, SQL_LIST *order, ha_rows rows, uint64_t options, bool reset_auto_increment)
Definition: sql_delete.cc:49