1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
|
/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#include <NdbApi.hpp>
#include <common/StmtArea.hpp>
#include <common/ResultArea.hpp>
#include <codegen/Code_delete_scan.hpp>
#include <codegen/Code_query.hpp>
void
Exec_delete_scan::execImpl(Ctx& ctx, Ctl& ctl)
{
const Code& code = getCode();
Data& data = getData();
Ndb* const ndb = ndbObject();
NdbConnection* const tcon = ndbConnection();
// execute subquery
ctx_assert(m_query != 0);
m_query->execute(ctx, ctl);
if (! ctx.ok())
return;
ctx_assert(ctl.m_scanOp != 0);
// delete each row from the scan
data.setCount(0);
while (m_query->fetch(ctx, ctl)) {
NdbOperation* toOp = ctl.m_scanOp->takeOverForDelete(tcon);
if (toOp == 0) {
ctx.pushStatus(ndb, tcon, ctl.m_scanOp, "takeOverScanOp");
return;
}
if (tcon->execute(NoCommit) == -1) {
if (toOp->getNdbError().code != 626) {
ctx.pushStatus(ndb, tcon, toOp, "execute without commit");
return;
}
} else {
data.addCount();
}
}
stmtArea().setRowCount(ctx, data.getCount());
}
|
