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https://issues.apache.org/jira/browse/BEAM-8070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17060430#comment-17060430
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Andrew Pilloud commented on BEAM-8070:
--------------------------------------
>From our internal tests (shard 4)
INFO: Processing Sql statement: SELECT DISTINCT * from UNNEST(ARRAY<int64>[])
Mar 16, 2020 11:55:33 AM
com.google.zetasql.io.grpc.internal.SerializingExecutor run
SEVERE: Exception while executing runnable
com.google.zetasql.io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1HalfClosed@79f9e5ed
java.lang.IndexOutOfBoundsException: index (0) must be less than size (0)
at
org.apache.beam.vendor.calcite.v1_20_0.com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:310)
at
org.apache.beam.vendor.calcite.v1_20_0.com.google.common.base.Preconditions.checkElementIndex(Preconditions.java:293)
at
org.apache.beam.vendor.calcite.v1_20_0.com.google.common.collect.RegularImmutableList.get(RegularImmutableList.java:67)
at
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rex.RexCallBinding.getOperandType(RexCallBinding.java:132)
at
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.sql.SqlOperatorBinding$1.get(SqlOperatorBinding.java:203)
at
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.sql.SqlOperatorBinding$1.get(SqlOperatorBinding.java:201)
at
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.sql.type.SqlTypeFactoryImpl.leastRestrictive(SqlTypeFactoryImpl.java:151)
at
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.sql.fun.SqlMultisetValueConstructor.getComponentType(SqlMultisetValueConstructor.java:82)
at
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.sql.fun.SqlArrayValueConstructor.inferReturnType(SqlArrayValueConstructor.java:35)
at
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rex.RexBuilder.deriveReturnType(RexBuilder.java:276)
at
org.apache.beam.vendor.calcite.v1_20_0.org.apache.calcite.rex.RexBuilder.makeCall(RexBuilder.java:250)
at
org.apache.beam.sdk.extensions.sql.zetasql.translation.ExpressionConverter.convertArrayValueToRexNode(ExpressionConverter.java:670)
at
org.apache.beam.sdk.extensions.sql.zetasql.translation.ExpressionConverter.convertValueToRexNode(ExpressionConverter.java:567)
at
org.apache.beam.sdk.extensions.sql.zetasql.translation.ExpressionConverter.convertResolvedLiteral(ExpressionConverter.java:535)
at
org.apache.beam.sdk.extensions.sql.zetasql.translation.ArrayScanToUncollectConverter.convert(ArrayScanToUncollectConverter.java:45)
at
org.apache.beam.sdk.extensions.sql.zetasql.translation.ArrayScanToUncollectConverter.convert(ArrayScanToUncollectConverter.java:31)
at
org.apache.beam.sdk.extensions.sql.zetasql.translation.QueryStatementConverter.convertNode(QueryStatementConverter.java:97)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at java.util.Collections$2.tryAdvance(Collections.java:4717)
at java.util.Collections$2.forEachRemaining(Collections.java:4725)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.ReduceOps$ReduceOp.evaluateSequential(ReduceOps.java:708)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.collect(ReferencePipeline.java:499)
at
org.apache.beam.sdk.extensions.sql.zetasql.translation.QueryStatementConverter.convertNode(QueryStatementConverter.java:96)
at
org.apache.beam.sdk.extensions.sql.zetasql.translation.QueryStatementConverter.convert(QueryStatementConverter.java:84)
at
org.apache.beam.sdk.extensions.sql.zetasql.translation.QueryStatementConverter.convertRootQuery(QueryStatementConverter.java:51)
at
org.apache.beam.sdk.extensions.sql.zetasql.ZetaSQLPlannerImpl.rel(ZetaSQLPlannerImpl.java:160)
at
org.apache.beam.sdk.extensions.sql.zetasql.ZetaSQLQueryPlanner.convertToBeamRelInternal(ZetaSQLQueryPlanner.java:131)
at
org.apache.beam.sdk.extensions.sql.zetasql.ZetaSQLQueryPlanner.convertToBeamRel(ZetaSQLQueryPlanner.java:115)
at
cloud.dataflow.sql.ExecuteQueryServiceServer$SqlComplianceServiceImpl.executeQuery(ExecuteQueryServiceServer.java:242)
at
com.google.zetasql.testing.SqlComplianceServiceGrpc$MethodHandlers.invoke(SqlComplianceServiceGrpc.java:423)
at
com.google.zetasql.io.grpc.stub.ServerCalls$UnaryServerCallHandler$UnaryServerCallListener.onHalfClose(ServerCalls.java:171)
at
com.google.zetasql.io.grpc.internal.ServerCallImpl$ServerStreamListenerImpl.halfClosed(ServerCallImpl.java:283)
at
com.google.zetasql.io.grpc.internal.ServerImpl$JumpToApplicationThreadServerStreamListener$1HalfClosed.runInContext(ServerImpl.java:711)
at
com.google.zetasql.io.grpc.internal.ContextRunnable.run(ContextRunnable.java:37)
at
com.google.zetasql.io.grpc.internal.SerializingExecutor.run(SerializingExecutor.java:123)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
> Support empty array literal
> ---------------------------
>
> Key: BEAM-8070
> URL: https://issues.apache.org/jira/browse/BEAM-8070
> Project: Beam
> Issue Type: Sub-task
> Components: dsl-sql-zetasql
> Reporter: Rui Wang
> Assignee: Andrew Pilloud
> Priority: Major
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Currently BeamSQL throws an IndexOutOfBoundsException when given a query with
> an empty array literal. This happens because Calcite attempts to infer the
> element types [1,2] from an empty element list.
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