Hello Michael Ho, Tim Armstrong, I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/8196 to look at the new patch set (#6). Change subject: IMPALA-4236: Codegen CopyRows() for select nodes ...................................................................... IMPALA-4236: Codegen CopyRows() for select nodes Testing: Added test case to verify that CopyRows in select node is successfully codegened. Performance: Queries used (num_nodes set to 1): 500 Predicates: select * from (select * from tpch_parquet.lineitem limit 6001215) t1 where l_partkey > 10 and l_extendedprice > 10000 and l_linenumber > 1 and l_comment >'foo0' .... and l_comment >'foo500' order by l_orderkey limit 10; 1 Predicate: select * from (select * from tpch_parquet.lineitem limit 6001215) t1 where l_partkey > 10 order by l_orderkey limit 10; +--------------+-----------------------------------------------------+ | | 500 Predicates | 1 Predicate | | +------------+-------------+------------+-------------+ | | After | Before | After | Before | +--------------+------------+-------------+------------+-------------+ | Select Node | 12s385ms | 1m1s | 234ms | 797ms | | Codegen time | 2s619ms | 1s962ms | 200ms | 181ms | +--------------+------------+-------------+------------+-------------+ Change-Id: Ie0d496d004418468e16b6f564f90f45ebbf87c1e --- M be/src/codegen/gen_ir_descriptions.py M be/src/codegen/impala-ir.cc M be/src/exec/CMakeLists.txt A be/src/exec/select-node-ir.cc M be/src/exec/select-node.cc M be/src/exec/select-node.h M tests/query_test/test_codegen.py 7 files changed, 110 insertions(+), 36 deletions(-) git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/96/8196/6 -- To view, visit http://gerrit.cloudera.org:8080/8196 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-MessageType: newpatchset Gerrit-Change-Id: Ie0d496d004418468e16b6f564f90f45ebbf87c1e Gerrit-Change-Number: 8196 Gerrit-PatchSet: 6 Gerrit-Owner: Bikramjeet Vig <bikramjeet....@cloudera.com> Gerrit-Reviewer: Bikramjeet Vig <bikramjeet....@cloudera.com> Gerrit-Reviewer: Michael Ho <k...@cloudera.com> Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>