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Code Issues

Fixed CORE-2155: Join of SP with view or table may fail with 'No current record for fetch operation'.

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This commit is contained in:
dimitr 2010-08-28 12:41:51 +00:00
parent f1b959694c
commit 523120f717
1 changed files with 26 additions and 11 deletions
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35
src/jrd/opt.cpp
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@ -512,15 +512,15 @@ namespace Jrd
class River
{
public:
River(CompilerScratch* csb, RecordSource* rsb, size_t count, UCHAR* streams)
: m_rsb(rsb), m_streams(csb->csb_pool)
River(CompilerScratch* csb, RecordSource* rsb, RecordSourceNode* node, size_t count, UCHAR* streams)
: m_rsb(rsb), m_node(node), m_streams(csb->csb_pool)
{
m_streams.resize(count);
memcpy(m_streams.begin(), streams, count);
}
River(CompilerScratch* csb, RecordSource* rsb, RiverList& rivers)
: m_rsb(rsb), m_streams(csb->csb_pool)
: m_rsb(rsb), m_node(NULL), m_streams(csb->csb_pool)
{
for (River** iter = rivers.begin(); iter < rivers.end(); iter++)
{
@ -574,6 +574,11 @@ namespace Jrd
return false;
}
bool isComputable(CompilerScratch* csb) const
{
return m_node ? m_node->computable(csb, -1, false, false, NULL) : true;
}
protected:
bool isReferenced(const jrd_nod* node, bool& field_found) const
{
@ -604,6 +609,7 @@ namespace Jrd
}
RecordSource* m_rsb;
RecordSourceNode* const m_node;
StreamList m_streams;
};
@ -618,17 +624,27 @@ namespace Jrd
if (count == 1)
{
m_rsb = rivers[0]->getRecordSource();
m_rsb = rivers.front()->getRecordSource();
}
else
{
HalfStaticArray<RecordSource*, OPT_STATIC_ITEMS> rsbs;
rsbs.resize(count);
RecordSource** ptr = rsbs.begin();
// Reorder input rivers according to their possible inter-dependencies
while (rsbs.getCount() < count)
{
for (River** iter = rivers.begin(); iter < rivers.end(); iter++)
{
*ptr++ = (*iter)->getRecordSource();
River* const sub_river = *iter;
RecordSource* const sub_rsb = sub_river->getRecordSource();
if (!rsbs.exist(sub_rsb) && sub_river->isComputable(csb))
{
rsbs.add(sub_rsb);
sub_river->activate(csb);
}
}
}
m_rsb = FB_NEW(csb->csb_pool) NestedLoopJoin(csb, count, rsbs.begin());
@ -879,7 +895,7 @@ RecordSource* OPT_compile(thread_db* tdbb, CompilerScratch* csb, RseNode* const
const size_t count = opt->localStreams[0];
UCHAR* const streams = opt->localStreams + 1;
River* const river = FB_NEW(*tdbb->getDefaultPool()) River(csb, rsb, count, streams);
River* const river = FB_NEW(*tdbb->getDefaultPool()) River(csb, rsb, node, count, streams);
river->deactivate(csb);
rivers.add(river);
}
@ -1085,7 +1101,6 @@ RecordSource* OPT_compile(thread_db* tdbb, CompilerScratch* csb, RseNode* const
// all currently available rivers
River* const river = FB_NEW(*tdbb->getDefaultPool()) CrossJoin(csb, rivers);
river->activate(csb);
rivers.add(river);
}
else
@ -2165,7 +2180,7 @@ static bool form_river(thread_db* tdbb,
FB_NEW(*tdbb->getDefaultPool()) NestedLoopJoin(csb, count, rsbs.begin());
// Allocate a river block and move the best order into it
River* const river = FB_NEW(*tdbb->getDefaultPool()) River(csb, rsb, count, streams.begin());
River* const river = FB_NEW(*tdbb->getDefaultPool()) River(csb, rsb, NULL, count, streams.begin());
river->deactivate(csb);
river_list.push(river);