[Impala-ASF-CR] IMPALA-10797: Frontend changes to enable 'stored as JSONFILE'

["Anonymous Coward (Code Review)" <ge...@cloudera.org>]

Hello Quanlong Huang, Impala Public Jenkins, 

I'd like you to reexamine a change. Please visit

    http://gerrit.cloudera.org:8080/17727

to look at the new patch set (#4).

Change subject: IMPALA-10797: Frontend changes to enable 'stored as JSONFILE'
......................................................................

IMPALA-10797: Frontend changes to enable 'stored as JSONFILE'

This change will allow usage of commands that do not require reading the
 Json File like:
- Create Table <Table> stored as JSONFILE
- Show Create Table <Table>
- Describe <Table>

Changes:
- Added JSON as FileFormat to thrift  and HdfsFileFormat.
- Allowing Sql keyword 'jsonfile' and mapping it to JSON format.
- Adding JSON serDe.
- JsonFiles have input format same as TextFile, so we need to use SerDe
library in use to differentiate between the two formats. Overloaded the
functions querying File Format based on input format to consider serDe
library too.
- Added tests for 'Create Table' and 'Show Create Table' commmands

Pending Changes:
- test for Describe command - to be added with backend changes.

Change-Id: I5b8cb2f59df3af09902b49d3bdac16c19954b305
---
M common/thrift/CatalogObjects.thrift
M fe/src/main/cup/sql-parser.cup
M fe/src/main/java/org/apache/impala/analysis/ToSqlUtils.java
M fe/src/main/java/org/apache/impala/catalog/HdfsFileFormat.java
M fe/src/main/java/org/apache/impala/catalog/HdfsStorageDescriptor.java
M fe/src/main/java/org/apache/impala/planner/HdfsScanNode.java
M fe/src/main/jflex/sql-scanner.flex
M fe/src/test/java/org/apache/impala/analysis/AnalyzeDDLTest.java
M testdata/workloads/functional-query/queries/QueryTest/show-create-table.test
9 files changed, 74 insertions(+), 16 deletions(-)


  git pull ssh://gerrit.cloudera.org:29418/Impala-ASF refs/changes/27/17727/4
-- 
To view, visit http://gerrit.cloudera.org:8080/17727
To unsubscribe, visit http://gerrit.cloudera.org:8080/settings

Gerrit-Project: Impala-ASF
Gerrit-Branch: master
Gerrit-MessageType: newpatchset
Gerrit-Change-Id: I5b8cb2f59df3af09902b49d3bdac16c19954b305
Gerrit-Change-Number: 17727
Gerrit-PatchSet: 4
Gerrit-Owner: Anonymous Coward <sh...@gmail.com>
Gerrit-Reviewer: Impala Public Jenkins <im...@cloudera.com>
Gerrit-Reviewer: Quanlong Huang <hu...@gmail.com>