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https://issues.apache.org/jira/browse/CALCITE-1005?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde updated CALCITE-1005:
---------------------------------
Summary: NullPointerException in getMaxRowCount for Aggregate (was:
NullPointerException in RelMdMaxRowCount)
> NullPointerException in getMaxRowCount for Aggregate
> ----------------------------------------------------
>
> Key: CALCITE-1005
> URL: https://issues.apache.org/jira/browse/CALCITE-1005
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.6.0
> Reporter: Mike Hinchey
> Assignee: Julian Hyde
>
> After commit 24b0747 for CALCITE-987, I get an error from a test in my own
> project, but the test is all copied from calcite.
> The query is this:
> with
> t1(x) as (select * from (values 1,2, case when 1 = 1 then null else 3 end)),
> t2(x) as (select * from (values 1,case when 1 = 1 then null else 3 end))
> select *
> from t1
> where t1.x not in (select t2.x from t2);
> I took that from core/src/test/resources/sql/subquery.oq, and I'm running
> with the CsvSchemaFactory and TRANSLATABLE.
> Abbreviated stacktrace (most of it is reflection noise):
> ...
> at
> org.apache.calcite.rel.metadata.RelMetadataQuery.getRowCount(RelMetadataQuery.java:86)
> at org.apache.calcite.plan.hep.HepPlanner.dumpGraph(HepPlanner.java:958)
> at
> org.apache.calcite.plan.hep.HepPlanner.applyTransformationResults(HepPlanner.java:723)
> at org.apache.calcite.plan.hep.HepPlanner.applyRule(HepPlanner.java:518)
> at
> org.apache.calcite.plan.hep.HepPlanner.applyRules(HepPlanner.java:392)
> at
> org.apache.calcite.plan.hep.HepPlanner.executeInstruction(HepPlanner.java:255)
> at
> org.apache.calcite.plan.hep.HepInstruction$RuleInstance.execute(HepInstruction.java:125)
> at
> org.apache.calcite.plan.hep.HepPlanner.executeProgram(HepPlanner.java:207)
> at
> org.apache.calcite.plan.hep.HepPlanner.findBestExp(HepPlanner.java:194)
> ... more
> at
> org.apache.calcite.rel.metadata.RelMetadataQuery.getRowCount(RelMetadataQuery.java:86)
> at
> org.apache.calcite.rel.core.Filter.estimateFilteredRows(Filter.java:156)
> at
> org.apache.calcite.rel.core.Filter.estimateFilteredRows(Filter.java:150)
> at org.apache.calcite.rel.core.Calc.getRows(Calc.java:135)
> at
> org.apache.calcite.rel.metadata.RelMdRowCount.getRowCount(RelMdRowCount.java:144)
> ... 50 more
> at
> org.apache.calcite.rel.metadata.RelMetadataQuery.getMaxRowCount(RelMetadataQuery.java:101)
> at
> org.apache.calcite.rel.metadata.RelMdUtil.getJoinRowCount(RelMdUtil.java:705)
> at org.apache.calcite.rel.core.Join.getRows(Join.java:175)
> at
> org.apache.calcite.rel.metadata.RelMdRowCount.getRowCount(RelMdRowCount.java:144)
> ... 90 more
> at
> org.apache.calcite.rel.metadata.RelMetadataQuery.getMaxRowCount(RelMetadataQuery.java:101)
> at
> org.apache.calcite.rel.metadata.RelMdMaxRowCount.getMaxRowCount(RelMdMaxRowCount.java:108)
> ... 105 more
> Caused by: java.lang.NullPointerException
> at
> org.apache.calcite.rel.metadata.RelMdMaxRowCount.getMaxRowCount(RelMdMaxRowCount.java:102)
> ... 125 more
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