Drizzled Public API Documentation

last_insert.cc
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4  * Copyright (C) 2008 Sun Microsystems, Inc.
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18  */
19 
20 #include <config.h>
21 
22 #include <drizzled/function/last_insert.h>
23 #include <drizzled/session.h>
24 
25 namespace drizzled
26 {
27 
29 {
30  assert(fixed == 1);
31  if (arg_count)
32  {
33  int64_t value= args[0]->val_int();
34  null_value= args[0]->null_value;
35  /*
36  LAST_INSERT_ID(X) must affect the client's insert_id() as
37  documented in the manual. We don't want to touch
38  first_successful_insert_id_in_cur_stmt because it would make
39  LAST_INSERT_ID(X) take precedence over an generated auto_increment
40  value for this row.
41  */
42  getSession().arg_of_last_insert_id_function= true;
43  getSession().first_successful_insert_id_in_prev_stmt= value;
44 
45  return value;
46  }
47  return getSession().read_first_successful_insert_id_in_prev_stmt();
48 }
49 
50 
51 bool Item_func_last_insert_id::fix_fields(Session *session, Item **ref)
52 {
53  return Item_int_func::fix_fields(session, ref);
54 }
55 
56 } /* namespace drizzled */
virtual int64_t val_int()=0
bool fixed
Definition: item.h:120
bool null_value
Definition: item.h:122
uint64_t first_successful_insert_id_in_prev_stmt
Definition: session.h:379