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https://issues.apache.org/jira/browse/CARBONDATA-4169?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Venugopal Reddy K updated CARBONDATA-4169:
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Description:
With [[https://github.com/apache/carbondata/pull/4110],] user has to delete all
segments from the older version of existing secondary index table and
reload/sync all segments again to use them in the seconday index coarse grain
datamap. This restriction is due to the fact that PR expects
CarbonCommonConstants.INDEX_STATUS property for the index to be set to
IndexStatus.ENABLED in the index metadata when main table and respective
secondary index table segments are in sync. And IndexChooser picks only
IndexStatus.ENABLED indexes in the datamap pruning. It applies to bloom, lucene
as well.
But this property was not set for the secondary indexes in the older versions
as they were not part of datamap pruning.
To support the secondary index coarse grain datamap pruning for existing
secondary indexes, need to support a way it happens automatically.
was:
With [PR 4110|[https://github.com/apache/carbondata/pull/4110],] user has to
delete all segments from the older version of existing secondary index table
and reload/sync all segments again to use them in the seconday index coarse
grain datamap. This restriction is due to the fact that PR expects
CarbonCommonConstants.INDEX_STATUS property for the index to be set to
IndexStatus.ENABLED in the index metadata when main table and respective
secondary index table segments are in sync. And IndexChooser picks only
IndexStatus.ENABLED indexes in the datamap pruning. It applies to bloom, lucene
as well.
But this property was not set for the secondary indexes in the older versions
as they were not part of datamap pruning.
To support the secondary index coarse grain datamap pruning for existing
secondary indexes, need to support a way it happens automatically.
> Secondary Index coarse grain datamap to work for existing Secondary Index
> tables
> --------------------------------------------------------------------------------
>
> Key: CARBONDATA-4169
> URL: https://issues.apache.org/jira/browse/CARBONDATA-4169
> Project: CarbonData
> Issue Type: Sub-task
> Components: core, spark-integration
> Reporter: Venugopal Reddy K
> Priority: Minor
>
> With [[https://github.com/apache/carbondata/pull/4110],] user has to delete
> all segments from the older version of existing secondary index table and
> reload/sync all segments again to use them in the seconday index coarse grain
> datamap. This restriction is due to the fact that PR expects
> CarbonCommonConstants.INDEX_STATUS property for the index to be set to
> IndexStatus.ENABLED in the index metadata when main table and respective
> secondary index table segments are in sync. And IndexChooser picks only
> IndexStatus.ENABLED indexes in the datamap pruning. It applies to bloom,
> lucene as well.
> But this property was not set for the secondary indexes in the older versions
> as they were not part of datamap pruning.
>
> To support the secondary index coarse grain datamap pruning for existing
> secondary indexes, need to support a way it happens automatically.
>
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