Daniel Becker has uploaded this change for review. ( 
http://gerrit.cloudera.org:8080/19660


Change subject: WIP - IMPALA-12019: Support ORDER BY for arrays of fixed length 
types in select list
......................................................................

WIP - IMPALA-12019: Support ORDER BY for arrays of fixed length types in select 
list

As a first stage of IMPALA-10939, this change implements support for
ORDER BY for top-level collections that only contain fixed length types.
For these types the implementation is almost the same as the existing
handling of strings.

Also refactored the RawValue::Write*() functions to have a clearer
interface.

TODO: Implement codegen.

Testing:
 - Added a new test table that contains many rows with arrays. This is
   queried in a new test added in test_sort.py, to ensure that we handle
   spilling correctly.
 - Added tests in test_nested_types.py that have arrays and maps in the
   sorting tuple
 - TODO: We should also test MAPs on a big table to test spilling but
   with the data generator expects an AVRO schema and in AVRO all struct
   keys are strings which are var-len.

Change-Id: Ic7974ef392c1412e8c60231e3420367bd189677a
---
M be/src/exec/hash-table.cc
M be/src/runtime/collection-value.cc
M be/src/runtime/collection-value.h
M be/src/runtime/raw-value.cc
M be/src/runtime/raw-value.h
M be/src/runtime/sorter-internal.h
M be/src/runtime/sorter.cc
M be/src/runtime/tuple.cc
M be/src/runtime/tuple.h
M fe/src/main/java/org/apache/impala/analysis/Analyzer.java
M fe/src/main/java/org/apache/impala/analysis/QueryStmt.java
M fe/src/main/java/org/apache/impala/analysis/SortInfo.java
A testdata/ComplexTypesTbl/simple_arrays_big.parq
M testdata/datasets/functional/functional_schema_template.sql
M testdata/datasets/functional/schema_constraints.csv
M 
testdata/workloads/functional-query/queries/QueryTest/mixed-collections-and-structs.test
A 
testdata/workloads/functional-query/queries/QueryTest/nested-array-in-select-list-no-codegen.test
M 
testdata/workloads/functional-query/queries/QueryTest/nested-array-in-select-list.test
A 
testdata/workloads/functional-query/queries/QueryTest/nested-map-in-select-list-no-codegen.test
M 
testdata/workloads/functional-query/queries/QueryTest/nested-map-in-select-list.test
M tests/query_test/test_nested_types.py
M tests/query_test/test_sort.py
22 files changed, 868 insertions(+), 189 deletions(-)



  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/60/19660/3
--
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Ic7974ef392c1412e8c60231e3420367bd189677a
Gerrit-Change-Number: 19660
Gerrit-PatchSet: 3
Gerrit-Owner: Daniel Becker <[email protected]>
Gerrit-Reviewer: Csaba Ringhofer <[email protected]>
Gerrit-Reviewer: Noemi Pap-Takacs <[email protected]>
Gerrit-Reviewer: Peter Rozsa <[email protected]>

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