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https://issues.apache.org/jira/browse/HIVE-1644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13014394#comment-13014394
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Russell Melick commented on HIVE-1644:
--------------------------------------
I'm having trouble getting the partitions from an Index. I do not know how to
get back to the index table, so I cannot use getPartCols()
I would like to do something like this, but I don't know how to get the
indexTable.
{code:java}
for (Index index : indexes.get(part.getTable())) {
Table indexTable;
indexTable = ???
List<FieldSchema> indexPartitions = indexTable.getPartCols();
for (FieldSchema col : part.getCols()) {
if (! indexPartitions.contains(col)) {
return null;
}
}
}
{code}
> use filter pushdown for automatically accessing indexes
> -------------------------------------------------------
>
> Key: HIVE-1644
> URL: https://issues.apache.org/jira/browse/HIVE-1644
> Project: Hive
> Issue Type: Improvement
> Components: Indexing
> Affects Versions: 0.7.0
> Reporter: John Sichi
> Assignee: Russell Melick
> Attachments: HIVE-1644.1.patch, HIVE-1644.10.patch,
> HIVE-1644.11.patch, HIVE-1644.2.patch, HIVE-1644.3.patch, HIVE-1644.4.patch,
> HIVE-1644.5.patch, HIVE-1644.6.patch, HIVE-1644.7.patch, HIVE-1644.8.patch,
> HIVE-1644.9.patch
>
>
> HIVE-1226 provides utilities for analyzing filters which have been pushed
> down to a table scan. The next step is to use these for selecting available
> indexes and generating access plans for those indexes.
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