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https://issues.apache.org/jira/browse/CALCITE-3877?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Julian Hyde reassigned CALCITE-3877:
------------------------------------
Assignee: Julian Hyde
> Null lowerBound/upperBond in RexWindow causes NPE in RexShuttle
> ---------------------------------------------------------------
>
> Key: CALCITE-3877
> URL: https://issues.apache.org/jira/browse/CALCITE-3877
> Project: Calcite
> Issue Type: Bug
> Reporter: Steven Talbot
> Assignee: Julian Hyde
> Priority: Major
> Fix For: 1.23.0
>
>
> Here's a test that can be dropped into RexShuttleTest.java
>
> {code:java}
> @Test public void handlesNullBoundsInRexWindow() {
> final RelBuilder builder =
> RelBuilder.create(RelBuilderTest.config().build());
> final RexNode over = builder.getRexBuilder().makeOver(
> builder.getTypeFactory().createSqlType(SqlTypeName.BIGINT),
> SqlStdOperatorTable.ROW_NUMBER,
> ImmutableList.of(),
> ImmutableList.of(),
> ImmutableList.of(),
> null,
> null,
> true,
> true,
> true,
> true,
> true
> );
> assertThat(over.accept(new RexShuttle()), is(over));
> }
> {code}
>
>
> That will raise an NPE. Fix is to handle NULLs when doing the child accept on
> the RexWindowBound[s] in RexShuttle.visitWindow.
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