[HIVE-11506] Casting varchar/char type to string cannot be vectorized

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 2.0.0
• Component/s: Vectorization
• Target Version/s: 1.3.0
• Assignee: Navis Ryu
• Reporter: Navis Ryu
• Created: 10/Aug/15 08:31
• Updated: 16/Feb/16 23:53
• Resolved: 24/Aug/15 04:45

Description

It's not defined in vectorization context.

explain 
select cast(cast(cstring1 as varchar(10)) as string) x from alltypesorc order by x;

Mapper is not vectorized by exception,

015-08-10 17:02:08,003 INFO  [main]: physical.Vectorizer (Vectorizer.java:validateExprNodeDesc(1299)) - Failed to vectorize
org.apache.hadoop.hive.ql.metadata.HiveException: Unhandled cast input type: varchar(10)
        at org.apache.hadoop.hive.ql.exec.vector.VectorizationContext.getCastToString(VectorizationContext.java:1543)
        at org.apache.hadoop.hive.ql.exec.vector.VectorizationContext.getGenericUDFBridgeVectorExpression(VectorizationContext.java:1379)
        at org.apache.hadoop.hive.ql.exec.vector.VectorizationContext.getGenericUdfVectorExpression(VectorizationContext.java:1177)
        at org.apache.hadoop.hive.ql.exec.vector.VectorizationContext.getVectorExpression(VectorizationContext.java:440)
        at org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer.validateExprNodeDesc(Vectorizer.java:1293)
        at org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer.validateExprNodeDesc(Vectorizer.java:1284)
        at org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer.validateSelectOperator(Vectorizer.java:1116)
        at org.apache.hadoop.hive.ql.optimizer.physical.Vectorizer.validateMapWorkOperator(Vectorizer.java:906)

Issue Links

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