Exec_insert.cpp
上传用户:romrleung
上传日期:2022-05-23
资源大小:18897k
文件大小:5k
- /* 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_insert.hpp>
- #include <codegen/Code_query.hpp>
- #ifdef NDB_WIN32
- #define FMT_I64 "%I64d"
- #else
- #define FMT_I64 "%lld"
- #endif
- void
- Exec_insert::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;
- // insert each row from query
- data.setCount(0);
- while (m_query->fetch(ctx, ctl)) {
- NdbOperation* op = tcon->getNdbOperation(code.m_tableName);
- if (op == 0) {
- ctx.pushStatus(ndb, tcon, 0, "getNdbOperation");
- return;
- }
- if (code.m_insertOp == Insert_op_insert) {
- if (op->insertTuple() == -1) {
- ctx.pushStatus(ndb, tcon, op, "insertTuple");
- return;
- }
- } else if (code.m_insertOp == Insert_op_write) {
- if (op->writeTuple() == -1) {
- ctx.pushStatus(ndb, tcon, op, "writeTuple");
- return;
- }
- } else {
- ctx_assert(false);
- }
- const SqlRow& sqlRow = m_query->getData().sqlRow();
- if (code.m_tupleId != 0) {
- Uint64 tid = op->setTupleId();
- if (tid == 0) {
- ctx.pushStatus(ndb, tcon, op, "setTupleId attrId=%u", (unsigned)code.m_tupleId);
- return;
- }
- ctx_log3(("generated TupleId " FMT_I64, tid));
- } else if (code.m_autoIncrement != 0) {
- // XXX use cache size 1 for birdies and fishies
- Uint64 tupleId = ndb->getAutoIncrementValue(code.m_tableName, 1);
- if (tupleId == 0) {
- ctx.pushStatus(ndb, "getTupleIdFromNdb");
- return;
- }
- NdbAttrId attrId = code.m_autoIncrement - 1;
- SqlSmallint sqlSmallint = 0;
- SqlInteger sqlInteger = 0;
- SqlBigint sqlBigint = 0;
- const char* value = 0;
- if (code.m_idType.type() == SqlType::Smallint) {
- sqlSmallint = tupleId;
- value = (const char*)&sqlSmallint;
- } else if (code.m_idType.type() == SqlType::Integer) {
- sqlInteger = tupleId;
- value = (const char*)&sqlInteger;
- } else if (code.m_idType.type() == SqlType::Bigint) {
- sqlBigint = tupleId;
- value = (const char*)&sqlBigint;
- } else {
- ctx_assert(false);
- }
- if (op->equal(attrId, value) == -1) {
- ctx.pushStatus(ndb, tcon, op, "equal attrId=%u", (unsigned)attrId);
- return;
- }
- } else {
- // normal key attributes
- for (unsigned i = 1; i <= sqlRow.count(); i++) {
- if (! code.m_isKey[i])
- continue;
- NdbAttrId attrId = code.m_attrId[i];
- const SqlField& f = sqlRow.getEntry(i);
- const void* addr = f.sqlNull() ? 0 : f.addr();
- const char* value = static_cast<const char*>(addr);
- if (op->equal(attrId, value) == -1) {
- ctx.pushStatus(ndb, tcon, op, "equal attrId=%u", (unsigned)attrId);
- return;
- }
- }
- }
- // non-key attributes
- for (unsigned i = 1; i <= sqlRow.count(); i++) {
- if (code.m_isKey[i])
- continue;
- NdbAttrId attrId = code.m_attrId[i];
- const SqlField& f = sqlRow.getEntry(i);
- const void* addr = f.sqlNull() ? 0 : f.addr();
- const char* value = static_cast<const char*>(addr);
- if (op->setValue(attrId, value) == -1) {
- ctx.pushStatus(ndb, tcon, op, "setValue attrId=%u", (unsigned)attrId);
- return;
- }
- }
- // default non-key values
- for (unsigned i = 1; i <= code.m_defaultCount; i++) {
- NdbAttrId attrId = code.m_defaultId[i];
- const SqlField& f = code.m_defaultValue->getEntry(i);
- const void* addr = f.sqlNull() ? 0 : f.addr();
- const char* value = static_cast<const char*>(addr);
- if (op->setValue(attrId, value) == -1) {
- ctx.pushStatus(ndb, tcon, op, "setValue attrId=%u", (unsigned)attrId);
- return;
- }
- }
- if (tcon->execute(NoCommit) == -1) {
- ctx.pushStatus(ndb, tcon, op, "execute without commit");
- return;
- }
- data.addCount();
- }
- stmtArea().setRowCount(ctx, data.getCount());
- }