tree 3a208e8b068c01610d3f59b9abfd9088de1d2b0a
parent a0e03071c0902c86f9f76cfafe3205af672b3d4b
author Tim Armstrong <tarmstrong@cloudera.com> 1574301287 -0800
committer Impala Public Jenkins <impala-public-jenkins@cloudera.com> 1575595698 +0000

IMPALA-9126: part 4: hash join builder manages spilling

This is the final patch for IMPALA-9126.

This will allow the many:1 relationship of probe:build
partitions that we need for the shared join build.

Key changes:
* Builder picks the next spilled partition to process.
* Partitions are identified by unique ID so can be
  decoupled between build and probe.
* unique_ptr is used to manage build partitions. This
  helps document the lifecycle of the partitions better,
  particularly when they are handed off to
  PartitionedHashJoinNode.

Testing:
* Ran exhaustive tests.
* Ran a single node TPC-H and TPC-DS stress test with 1000 queries.

Perf:
Ran a single node TPC-H 30 test against master from
before IMPALA-9126 changes. No significant perf
change.

Change-Id: I6de5f62e3eacf80f72c8ea0ed8cba012f0f53c90
Reviewed-on: http://gerrit.cloudera.org:8080/14790
Reviewed-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>
Tested-by: Impala Public Jenkins <impala-public-jenkins@cloudera.com>