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https://issues.apache.org/jira/browse/CALCITE-6210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17817175#comment-17817175
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Mihai Budiu commented on CALCITE-6210:
--------------------------------------
Frankly, the Pinot solution looks brittle to me. The main problem from my point
of view is that you do the shuttle rewrite before type inference, so you don't
really know the types of the involved objects. This may work for simple
expressions, like literals, but if the expression involves functions that may
return BINARY objects I don't know if it will work.
> Cast to VARBINARY causes an assertion failure
> ---------------------------------------------
>
> Key: CALCITE-6210
> URL: https://issues.apache.org/jira/browse/CALCITE-6210
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.36.0
> Reporter: Mihai Budiu
> Priority: Minor
> Labels: pull-request-available
>
> This test in SqlOperatorTest:
> {code:java}
> SqlOperatorFixture f = fixture();
> f.checkScalar("CAST('00' AS VARBINARY)", "00", "VARBINARY NOT NULL");
> {code}
> Causes the following assertion failure:
> {code}
> java.lang.AssertionError: value 00 does not match type class
> org.apache.calcite.avatica.util.ByteString
> at
> org.apache.calcite.linq4j.tree.ConstantExpression.<init>(ConstantExpression.java:51)
> at
> org.apache.calcite.linq4j.tree.Expressions.constant(Expressions.java:585)
> at
> org.apache.calcite.linq4j.tree.OptimizeShuttle.visit(OptimizeShuttle.java:305)
> at
> org.apache.calcite.linq4j.tree.UnaryExpression.accept(UnaryExpression.java:39)
> at
> org.apache.calcite.linq4j.tree.TernaryExpression.accept(TernaryExpression.java:47)
> at
> org.apache.calcite.linq4j.tree.DeclarationStatement.accept(DeclarationStatement.java:45)
> at
> org.apache.calcite.linq4j.tree.DeclarationStatement.accept(DeclarationStatement.java:27)
> at
> org.apache.calcite.linq4j.tree.BlockBuilder.optimize(BlockBuilder.java:426)
> at
> org.apache.calcite.linq4j.tree.BlockBuilder.toBlock(BlockBuilder.java:340)
> at
> org.apache.calcite.rex.RexExecutorImpl.compile(RexExecutorImpl.java:102)
> at
> org.apache.calcite.rex.RexExecutorImpl.compile(RexExecutorImpl.java:68)
> at
> org.apache.calcite.rex.RexExecutorImpl.reduce(RexExecutorImpl.java:133)
> at
> org.apache.calcite.rex.RexSimplify.simplifyCast(RexSimplify.java:2272)
> at org.apache.calcite.rex.RexSimplify.simplify(RexSimplify.java:292)
> at
> org.apache.calcite.rex.RexSimplify.simplifyUnknownAs(RexSimplify.java:250)
> at
> org.apache.calcite.rex.RexSimplify.simplifyPreservingType(RexSimplify.java:189)
> at
> org.apache.calcite.rex.RexSimplify.simplifyPreservingType(RexSimplify.java:184)
> {code}
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