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https://issues.apache.org/jira/browse/HAWQ-931?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Shivram Mani resolved HAWQ-931.
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Resolution: Fixed
Fix Version/s: (was: backlog)
2.0.1.0-incubating
Introduced a new HiveORC profile with support for Column Projection and support
for Predicate Pushdown*.
Only queries with AND logical operators will be pushed down. Queries with OR
operators are not yet supported.
> HiveORCAccessor with support for Predicate pushdown and Column Projection
> -------------------------------------------------------------------------
>
> Key: HAWQ-931
> URL: https://issues.apache.org/jira/browse/HAWQ-931
> Project: Apache HAWQ
> Issue Type: Sub-task
> Components: PXF
> Reporter: Shivram Mani
> Assignee: Shivram Mani
> Fix For: 2.0.1.0-incubating
>
>
> HiveORCAccessor will be a subclass of the existing HiveAccessor with support
> for Predicate Pushdown and Column projection.
> We will be using the job configuration object which is used by the ORC
> reader. This will still be a record based reader and not batch/vector based
> We will map the filter information passed from HAWQ via PXF into
> SearchArgument object and set in sarg.pushdown configuration property.
> We will populate the column info passed from HAWQ (HAWQ-927) into the
> following configuration properties
> hive.io.file.readcolumn.ids, hive.io.file.readcolumn.names.
> hive.io.file.read.all.columns will be set to false.
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