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/* 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 <dictionary/DictSchema.hpp>
#include <dictionary/DictColumn.hpp>
#include "Code_column.hpp"
#include "Code_table_list.hpp"
#include "Code_table.hpp"
// Plan_column
Plan_column::~Plan_column()
{
}
void
Plan_column::analyzeColumn(Ctx& ctx, Plan_base::Ctl& ctl)
{
if (m_resTable != 0) // done on previous pass
return;
if (! (ctl.m_tableList.size() > 1)) {
ctx.pushStatus(Sqlstate::_42000, Error::Gen, "column %s not allowed here", getPrintName());
return;
}
unsigned resCount = 0;
for (unsigned i = 1; i < ctl.m_tableList.size(); i++) {
Plan_table* table = ctl.m_tableList[i];
ctx_assert(table != 0);
int ret = table->resolveColumn(ctx, this);
if (ret < 0)
return;
if (ret)
resCount++;
}
if (resCount == 0) {
// XXX try to strip "schema name" from table name
for (unsigned i = 1; i < ctl.m_tableList.size(); i++) {
Plan_table* table = ctl.m_tableList[i];
ctx_assert(table != 0);
int ret = table->resolveColumn(ctx, this, true);
if (ret < 0)
return;
if (ret)
resCount++;
}
}
if (resCount == 0) {
ctx.pushStatus(Sqlstate::_42S22, Error::Gen, "column %s not found", getPrintName());
return;
}
if (resCount > 1) {
ctx.pushStatus(Error::Gen, "column %s is ambiguous", getPrintName());
return;
}
// copy SQL type
m_sqlType = dictColumn().sqlType();
}
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