[HIVE-7160] Vectorization Udf: GenericUDFConcat for non-string columns input, is not supported

• Type: Bug
• Status: Patch Available
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 0.14.0
• Assignee: Navis Ryu Assign to me
• Reporter: Gopal Vijayaraghavan
• Created: 31/May/14 22:43
• Updated: 11/Aug/14 17:07

Description

simple UDF missing vectorization - simple example would be

hive> explain select concat( l_orderkey, ' msecs') from lineitem;

is not vectorized while

hive> explain select concat(cast(l_orderkey as string), ' msecs') from lineitem;

can be vectorized.

14/05/31 15:28:59 [main]: DEBUG vector.VectorizationContext: No vector udf found for GenericUDFConcat, descriptor: Argument Count = 2, mode = PROJECTION, Argument Types = {LONG, STRING}, Input Expression Types = {COLUMN,COLUMN}
14/05/31 15:28:59 [main]: DEBUG physical.Vectorizer: Failed to vectorize
org.apache.hadoop.hive.ql.metadata.HiveException: Udf: GenericUDFConcat, is not supported
        at org.apache.hadoop.hive.ql.exec.vector.VectorizationContext.getGenericUdfVectorExpression(VectorizationContext.java:918)