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MCOL-1182 Keep filters for cross engine step

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Cross engine step needs the filters for joining a constant with the
cross engine table. Deleting them early causes a crash.
This commit is contained in:
Andrew Hutchings
2018-04-10 14:14:22 +01:00
parent 3eb36e6bf9
commit a80854c11f
1 changed files with 18 additions and 3 deletions
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15
dbcon/joblist/jlf_execplantojoblist.cpp
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@@ -1954,6 +1954,7 @@ const JobStepVector doOuterJoinOnFilter(OuterJoinOnFilter* oj, JobInfo& jobInfo)
set<ParseTree*> doneNodes; // solved joins and simple filters
map<ParseTree*, ParseTree*> cpMap; // <child, parent> link for node removal
JobStepVector join; // join step with its projection steps
bool keepFilters = false; // keep filters for cross engine step
// To compromise the front end difficulty on setting outer attributes.
set<uint64_t> tablesInOuter;
@@ -2162,6 +2163,14 @@ const JobStepVector doOuterJoinOnFilter(OuterJoinOnFilter* oj, JobInfo& jobInfo)
jsv.insert(jsv.end(), sfv.begin(), sfv.end());
// MCOL-1182 if we are doing a join between a cross engine
// step and a constant then keep the filter for the cross
// engine step instead of deleting it further down.
if (!sc->isInfiniDB())
{
keepFilters = true;
}
doneNodes.insert(cn);
}
}
@@ -2198,7 +2207,10 @@ const JobStepVector doOuterJoinOnFilter(OuterJoinOnFilter* oj, JobInfo& jobInfo)
if (p == NULL)
{
filters = NULL;
if (!keepFilters)
{
delete c;
}
}
else
{
@@ -2240,10 +2252,13 @@ const JobStepVector doOuterJoinOnFilter(OuterJoinOnFilter* oj, JobInfo& jobInfo)
p->left(nullTree);
p->right(nullTree);
if (!keepFilters)
{
delete p;
delete c;
}
}
}
// construct an expression step, if additional comparison exists.
if (isOk && filters != NULL && filters->data() != NULL)