Hello Mahesh Reddy, Kudu Jenkins, Abhishek Chennaka,
I'd like you to reexamine a change. Please visit
http://gerrit.cloudera.org:8080/18672
to look at the new patch set (#4).
Change subject: KUDU-2671 introduce PartitionPruner::PrepareRangeSet()
......................................................................
KUDU-2671 introduce PartitionPruner::PrepareRangeSet()
Since PartitionSchema now provides and persists information only on
ranges with custom hash schemas [1], but PartitionPruner::Init()'s
logic assumed receiving information on all the existing ranges in case
of tables with range-specific hash schemas, it needed an update.
This patch does exactly so, adding a new PrepareRangeSet() method into
the PartitionPruner class. The new method produces the preliminary
set of scanner ranges with proper hash schemas per each range using the
information on the table-wide hash schema and range-specific hash
schemas provided. It splits the predicate-based range into sub-ranges
and assigns corresponding hash schemas to them. In essence, the hash
schemas for the ranges with custom hash schemas are known, and the rest
of the sub-ranges have the table-wide hash schema.
This patch also contains unit test for the newly introduced method.
I updated TestHashSchemasPerRangeWithPartialPrimaryKeyRangePruning
and TestInListHashPruningPerRange scenarios of the PartitionPrunerTest
accordingly since now the number of initial ranges for pruning changed
even if the number of non-pruned ranges to scan stayed the same.
This is a follow-up to [1].
[1] https://gerrit.cloudera.org/#/c/18642/
Change-Id: I7f1903a444d47d30bbd7e119977cbb87bf1aa458
---
M src/kudu/common/partition.cc
M src/kudu/common/partition.h
M src/kudu/common/partition_pruner-test.cc
M src/kudu/common/partition_pruner.cc
M src/kudu/common/partition_pruner.h
5 files changed, 770 insertions(+), 57 deletions(-)
git pull ssh://gerrit.cloudera.org:29418/kudu refs/changes/72/18672/4
--
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Gerrit-Project: kudu
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I7f1903a444d47d30bbd7e119977cbb87bf1aa458
Gerrit-Change-Number: 18672
Gerrit-PatchSet: 4
Gerrit-Owner: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Abhishek Chennaka <[email protected]>
Gerrit-Reviewer: Alexey Serbin <[email protected]>
Gerrit-Reviewer: Kudu Jenkins (120)
Gerrit-Reviewer: Mahesh Reddy <[email protected]>
