[jira] [Created] (CALCITE-448) RelOptUtil::eq() should consider nullability in type check

[Ashutosh Chauhan (JIRA)]

Ashutosh Chauhan created CALCITE-448:
----------------------------------------

             Summary: RelOptUtil::eq() should consider nullability in type check
                 Key: CALCITE-448
                 URL: https://issues.apache.org/jira/browse/CALCITE-448
             Project: Calcite
          Issue Type: Bug
    Affects Versions: 0.9.2-incubating
            Reporter: Ashutosh Chauhan
            Assignee: Julian Hyde


Filter should be allowed to be constructed even when types are {{INTEGER}} && 
{{INTEGER NOT NULL}} respectively. Currently, it fails with :
{code}
 java.lang.AssertionError: type mismatch:
type1:
INTEGER NOT NULL
type2:
INTEGER
        at org.eigenbase.relopt.RelOptUtil.eq(RelOptUtil.java:1566)
        at 
org.eigenbase.rex.RexProgramBuilder$RegisterInputShuttle.visitInputRef(RexProgramBuilder.java:899)
        at 
org.eigenbase.rex.RexProgramBuilder$RegisterInputShuttle.visitInputRef(RexProgramBuilder.java:878)
        at org.eigenbase.rex.RexInputRef.accept(RexInputRef.java:102)
        at org.eigenbase.rex.RexShuttle.visitList(RexShuttle.java:129)
        at org.eigenbase.rex.RexShuttle.visitCall(RexShuttle.java:78)
        at 
org.eigenbase.rex.RexProgramBuilder$RegisterShuttle.visitCall(RexProgramBuilder.java:843)
        at 
org.eigenbase.rex.RexProgramBuilder$RegisterShuttle.visitCall(RexProgramBuilder.java:841)
        at org.eigenbase.rex.RexCall.accept(RexCall.java:105)
        at 
org.eigenbase.rex.RexProgramBuilder.registerInput(RexProgramBuilder.java:272)
        at 
org.eigenbase.rex.RexProgramBuilder.addCondition(RexProgramBuilder.java:247)
        at 
org.eigenbase.relopt.RelOptUtil.pushFilterPastProject(RelOptUtil.java:2367)
        at 
org.eigenbase.rel.rules.PushFilterPastProjectRule.onMatch(PushFilterPastProjectRule.java:80)
        at 
org.eigenbase.relopt.AbstractRelOptPlanner.fireRule(AbstractRelOptPlanner.java:321)
        at org.eigenbase.relopt.hep.HepPlanner.applyRule(HepPlanner.java:488)
        at org.eigenbase.relopt.hep.HepPlanner.applyRules(HepPlanner.java:365)
        at 
org.eigenbase.relopt.hep.HepPlanner.executeInstruction(HepPlanner.java:258)
        at 
org.eigenbase.relopt.hep.HepInstruction$RuleCollection.execute(HepInstruction.java:68)
        at 
org.eigenbase.relopt.hep.HepPlanner.executeProgram(HepPlanner.java:179)
        at org.eigenbase.relopt.hep.HepPlanner.findBestExp(HepPlanner.java:166)
{code}



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