Daniel Becker has uploaded a new patch set (#12). ( 
http://gerrit.cloudera.org:8080/19322 )

Change subject: IMPALA-9551: Allow mixed complex types in select list
......................................................................

IMPALA-9551: Allow mixed complex types in select list

Currently collections and structs are supported in the select list, also
when they are nested (structs in structs and collections in
collections), but mixing different kinds of complex types, i.e. having
structs in collections or vice versa, is not supported.

This patch adds support for mixed complex types in the select list.

There is a limitation: zipping unnest for arrays that are within a
struct is not supported, for example the following query:

  use functional_parquet;
  select unnest(struct_contains_nested_arr.arr) from
  collection_struct_mix;

Testing:
 - Created a new test table, 'collection_struct_mix', that contains
   mixed complex types.
 - Added tests in mixed-collections-and-structs.test that test having
   mixed complex types in the select list. These tests are called from
   test_nested_types.py::TestMixedCollectionsAndStructsInSelectList.
 - Ran existing tests that test collections and structs in the select
   list; test queries that expected a failure in case of mixed complex
   types have been moved to mixed-collections-and-structs.test and now
   expect success.

Change-Id: I476d98884b5fd192dfcd4feeec7947526aebe993
---
M be/src/exec/unnest-node.cc
M be/src/exprs/slot-ref.h
M be/src/runtime/complex-value-writer.h
M be/src/runtime/complex-value-writer.inline.h
M be/src/runtime/descriptors.cc
M be/src/runtime/raw-value.cc
M be/src/service/hs2-util.cc
M be/src/service/query-result-set.cc
M fe/src/main/java/org/apache/impala/analysis/Analyzer.java
M fe/src/main/java/org/apache/impala/analysis/CollectionTableRef.java
M fe/src/main/java/org/apache/impala/analysis/InlineViewRef.java
M fe/src/main/java/org/apache/impala/analysis/SlotDescriptor.java
M fe/src/main/java/org/apache/impala/analysis/SlotRef.java
M fe/src/main/java/org/apache/impala/analysis/TupleDescriptor.java
M fe/src/main/java/org/apache/impala/analysis/UnnestExpr.java
M fe/src/main/java/org/apache/impala/planner/SingleNodePlanner.java
M fe/src/test/java/org/apache/impala/analysis/AnalyzeStmtsTest.java
M testdata/datasets/functional/functional_schema_template.sql
M testdata/datasets/functional/schema_constraints.csv
M testdata/workloads/functional-query/queries/QueryTest/map_null_keys.test
A 
testdata/workloads/functional-query/queries/QueryTest/mixed-collections-and-structs.test
M 
testdata/workloads/functional-query/queries/QueryTest/struct-in-select-list.test
M tests/query_test/test_nested_types.py
23 files changed, 1,113 insertions(+), 257 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/22/19322/12
--
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Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I476d98884b5fd192dfcd4feeec7947526aebe993
Gerrit-Change-Number: 19322
Gerrit-PatchSet: 12
Gerrit-Owner: Daniel Becker <daniel.bec...@cloudera.com>
Gerrit-Reviewer: Csaba Ringhofer <csringho...@cloudera.com>
Gerrit-Reviewer: Daniel Becker <daniel.bec...@cloudera.com>
Gerrit-Reviewer: Impala Public Jenkins <impala-public-jenk...@cloudera.com>
Gerrit-Reviewer: Michael Smith <michael.sm...@cloudera.com>
Gerrit-Reviewer: Peter Rozsa <pro...@cloudera.com>

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