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https://issues.apache.org/jira/browse/IMPALA-7140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16774444#comment-16774444
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ASF subversion and git services commented on IMPALA-7140:
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Commit db138c21a31116cc95ce93bd23d530bb090ab760 in impala's branch
refs/heads/2.x from Todd Lipcon
[ https://gitbox.apache.org/repos/asf?p=impala.git;h=db138c2 ]
IMPALA-7140 (part 1). Support fetching schema info in LocalCatalog
This adds support for loading the Table object from HMS and parsing out
the Column and partitioning information from it.
With this change, I'm able to connect to an impalad running in "local
catalog" mode and run DESCRIBE, DESCRIBE EXTENDED, and SHOW CREATE TABLE
commands. Other commands like SHOW PARTITIONS don't work properly yet,
and type-specific table functionality (eg views, HBase tables, etc) are
not yet supported.
Again a simple unit test is included to check that column information is
loaded. More thorough testing is deferred until we've reached enough
coverage that we can start running e2e tests against a cluster running
in "local" mode.
Change-Id: I640f27e36198955e057da62a3ce25a858406e496
Reviewed-on: http://gerrit.cloudera.org:8080/10630
Tested-by: Impala Public Jenkins <[email protected]>
Reviewed-by: Todd Lipcon <[email protected]>
> Build out support for HDFS tables and views in LocalCatalog
> -----------------------------------------------------------
>
> Key: IMPALA-7140
> URL: https://issues.apache.org/jira/browse/IMPALA-7140
> Project: IMPALA
> Issue Type: Sub-task
> Components: Catalog, Frontend
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Major
> Fix For: Impala 3.1.0
>
>
> This subtask tracks the work to build out basic read-only support for HDFS
> tables and views in the LocalCatalog implementation:
> - loading table schemas
> - loading partitions
> - loading file information from HDFS
> This work will be broken up into a number of patches to keep each piece
> reviewable. Once this subtask is complete we should be able to plan most
> simple read-only queries.
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