New logical plan: FilterLogicExpressionSimplifier fail to deal with UDF
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Key: PIG-1820
URL: https://issues.apache.org/jira/browse/PIG-1820
Project: Pig
Issue Type: Bug
Components: impl
Affects Versions: 0.8.0
Reporter: Daniel Dai
Assignee: Daniel Dai
Fix For: 0.8.0
Attachments: PIG-1820-1.patch
The following script fail:
{code}
a = load '1.txt' as (a0, a1);
b = filter a by (a0 is not null or a1 is not null) and IsEmpty(a0);
explain b;
{code}
Error message:
Caused by: java.lang.ClassCastException:
org.apache.pig.newplan.logical.expression.UserFuncExpression cannot be cast to
org.apache.pig.newplan.logical.expression.BinaryExpression
at
org.apache.pig.newplan.logical.rules.LogicalExpressionSimplifier$LogicalExpressionSimplifierTransformer.handleBinary(LogicalExpressionSimplifier.java:561)
at
org.apache.pig.newplan.logical.rules.LogicalExpressionSimplifier$LogicalExpressionSimplifierTransformer.handleAnd(LogicalExpressionSimplifier.java:429)
at
org.apache.pig.newplan.logical.rules.LogicalExpressionSimplifier$LogicalExpressionSimplifierTransformer.inferRelationship(LogicalExpressionSimplifier.java:397)
at
org.apache.pig.newplan.logical.rules.LogicalExpressionSimplifier$LogicalExpressionSimplifierTransformer.handleDNFOr(LogicalExpressionSimplifier.java:281)
at
org.apache.pig.newplan.logical.rules.LogicalExpressionSimplifier$LogicalExpressionSimplifierTransformer.checkDNFLeaves(LogicalExpressionSimplifier.java:192)
at
org.apache.pig.newplan.logical.rules.LogicalExpressionSimplifier$LogicalExpressionSimplifierTransformer.transform(LogicalExpressionSimplifier.java:108)
at
org.apache.pig.newplan.optimizer.PlanOptimizer.optimize(PlanOptimizer.java:110)
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