Details
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Bug
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Status: Closed
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Major
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Resolution: Fixed
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1.37.0
Description
AggregateJoinTransposeRule can throw ArrayIndexOutOfBoundsException when applied on a SemiJoin, because it creates a mapping containing the Join's field count (which in case of a SemiJoin is just the LHS field count), and said mapping is used to process the (Semi)Join condition, which can contain references to the RHS fields.
The exception looks like:
Index 2 out of bounds for length 2 java.lang.ArrayIndexOutOfBoundsException: Index 2 out of bounds for length 2 at org.apache.calcite.util.mapping.Mappings$PartialFunctionImpl.getTargetOpt(Mappings.java:1780) at org.apache.calcite.util.mapping.Mappings$AbstractMapping.getTarget(Mappings.java:943) at org.apache.calcite.rex.RexPermuteInputsShuttle.visitInputRef(RexPermuteInputsShuttle.java:87) at org.apache.calcite.rex.RexPermuteInputsShuttle.visitInputRef(RexPermuteInputsShuttle.java:35) at org.apache.calcite.rex.RexInputRef.accept(RexInputRef.java:125) at org.apache.calcite.rex.RexShuttle.visitList(RexShuttle.java:167) at org.apache.calcite.rex.RexShuttle.visitCall(RexShuttle.java:119) at org.apache.calcite.rex.RexPermuteInputsShuttle.visitCall(RexPermuteInputsShuttle.java:102) at org.apache.calcite.rex.RexPermuteInputsShuttle.visitCall(RexPermuteInputsShuttle.java:35) at org.apache.calcite.rex.RexCall.accept(RexCall.java:208) at org.apache.calcite.rex.RexUtil.apply(RexUtil.java:1516) at org.apache.calcite.rel.rules.AggregateJoinTransposeRule.onMatch(AggregateJoinTransposeRule.java:329) ...
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