tree 3149bd7c3326034f07de22f33312c3bc9eff9677
parent 2359a1be9dc491f6c35fe3415265d4a29d6bc939
author Daniel Becker <daniel.becker@cloudera.com> 1596561063 +0200
committer Impala Public Jenkins <impala-public-jenkins@cloudera.com> 1599180902 +0000

IMPALA-7658: Proper codegen for HiveUdfCall

Implementing codegen for HiveUdfCall.

Testing:
Verified that java udf tests pass locally.

Benchmarks:
Used a UDF from TestUdf.java that adds three integers:

  create function tpch15_parquet.sum3(int, int, int) returns int
  location '/test-warehouse/impala-hive-udfs.jar'
  symbol='org.apache.impala.TestUdf';

Used the following query on the master branch and the change's branch:

  set num_nodes=1; set mt_dop=1;
  select min(tpch15_parquet.sum3(cast(l_orderkey as int),
    cast(l_partkey as int), cast(l_suppkey as int)))
  from tpch15_parquet.lineitem;

Results averaged over 100 runs after warmup:
Master: 20.6346s, stddev: 0.3132411856765332
This change: 19.0256s, stddev: 0.42039019873436

This is a ~7.8% improvement.

Change-Id: I2f994dac550f297ed3c88491816403f237d4d747
Reviewed-on: http://gerrit.cloudera.org:8080/16314
Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>