Internal Jenkins has submitted this change and it was merged. Change subject: IMPALA-1430,IMPALA-4108: codegen all builtin aggregate functions ......................................................................
IMPALA-1430,IMPALA-4108: codegen all builtin aggregate functions This change enables codegen for all builtin aggregate functions, e.g. timestamp functions and group_concat. There are several parts to the change: * Adding support for generic UDAs. Previous the codegen code did not handle multiple input arguments or NULL return values. * Defaulting to using the UDA interface when there is not a special codegen path (we have implementations of all builtin aggregate functions for the interpreted path). * Remove all the logic to disable codegen for the special cases that now are supported. Also fix the generation of code to get/set NULL bits since I needed to add functionality there anyway. Testing: Add tests that check that codegen was enabled for builtin aggregate functions. Also fix some gaps in the preexisting tests. Also add tests for UDAs that check input/output nulls are handled correctly, in anticipation of enabling codegen for arbitrary UDAs. The tests are run with both codegen enabled and disabled. To avoid flaky tests, we switch the UDF tests to use "unique_database". Perf: Ran local TPC-H and targeted perf. Spent a lot of time on TPC-H Q1, since my original approach regressed it ~5%. In the end the problem was to do with the ordering of loads/stores to the slot and null bit in the generated code: the previous version of the code exploited some properties of the particular aggregate function. I ended up replicating this behaviour to avoid regressing perf. Change-Id: Id9dc21d1d676505d3617e1e4f37557397c4fb260 Reviewed-on: http://gerrit.cloudera.org:8080/4655 Reviewed-by: Tim Armstrong <tarmstr...@cloudera.com> Tested-by: Internal Jenkins --- M be/src/benchmarks/hash-benchmark.cc M be/src/codegen/codegen-anyval.cc M be/src/codegen/codegen-anyval.h M be/src/codegen/gen_ir_descriptions.py M be/src/codegen/llvm-codegen-test.cc M be/src/codegen/llvm-codegen.cc M be/src/codegen/llvm-codegen.h M be/src/exec/aggregation-node.cc M be/src/exec/exec-node.cc M be/src/exec/hash-join-node.cc M be/src/exec/hash-table.cc M be/src/exec/hdfs-avro-scanner.cc M be/src/exec/hdfs-scanner.cc M be/src/exec/old-hash-table.cc M be/src/exec/partitioned-aggregation-node-ir.cc M be/src/exec/partitioned-aggregation-node.cc M be/src/exec/partitioned-aggregation-node.h M be/src/exec/partitioned-hash-join-node.cc M be/src/exec/text-converter.cc M be/src/exprs/aggregate-functions-ir.cc M be/src/exprs/case-expr.cc M be/src/exprs/compound-predicates.cc M be/src/exprs/expr-codegen-test.cc M be/src/exprs/expr.cc M be/src/exprs/literal.cc M be/src/exprs/null-literal.cc M be/src/exprs/scalar-fn-call.cc M be/src/exprs/slot-ref.cc M be/src/runtime/descriptors.cc M be/src/runtime/descriptors.h M be/src/runtime/tuple.cc M be/src/runtime/types.h M be/src/testutil/test-udas.cc M be/src/testutil/test-udfs.cc M be/src/util/tuple-row-compare.cc M testdata/workloads/functional-query/queries/QueryTest/java-udf.test M testdata/workloads/functional-query/queries/QueryTest/libs_with_same_filenames.test M testdata/workloads/functional-query/queries/QueryTest/load-java-udfs.test M testdata/workloads/functional-query/queries/QueryTest/uda-mem-limit.test M testdata/workloads/functional-query/queries/QueryTest/uda.test A testdata/workloads/functional-query/queries/QueryTest/udf-codegen-required.test M testdata/workloads/functional-query/queries/QueryTest/udf-errors.test M testdata/workloads/functional-query/queries/QueryTest/udf-mem-limit.test M testdata/workloads/functional-query/queries/QueryTest/udf.test M tests/common/test_result_verifier.py M tests/query_test/test_aggregation.py M tests/query_test/test_udfs.py 47 files changed, 1,039 insertions(+), 802 deletions(-) Approvals: Internal Jenkins: Verified Tim Armstrong: Looks good to me, approved -- To view, visit http://gerrit.cloudera.org:8080/4655 To unsubscribe, visit http://gerrit.cloudera.org:8080/settings Gerrit-MessageType: merged Gerrit-Change-Id: Id9dc21d1d676505d3617e1e4f37557397c4fb260 Gerrit-PatchSet: 16 Gerrit-Project: Impala-ASF Gerrit-Branch: master Gerrit-Owner: Tim Armstrong <tarmstr...@cloudera.com> Gerrit-Reviewer: Alex Behm <alex.b...@cloudera.com> Gerrit-Reviewer: Dan Hecht <dhe...@cloudera.com> Gerrit-Reviewer: Internal Jenkins Gerrit-Reviewer: Michael Ho <k...@cloudera.com> Gerrit-Reviewer: Tim Armstrong <tarmstr...@cloudera.com>
