Gautam Parai created DRILL-6833: ----------------------------------- Summary: MapRDB queries with Run Time Filters with row_key/Secondary Index Should Support Pushdown Key: DRILL-6833 URL: https://issues.apache.org/jira/browse/DRILL-6833 Project: Apache Drill Issue Type: New Feature Affects Versions: 1.15.0 Reporter: Gautam Parai Assignee: Gautam Parai Fix For: 1.15.0
Drill should push down all row key filters to maprDB for queries that only have WHERE conditions on row_keys. In the following example, the query only has where clause on row_keys: select t.mscIdentities from dfs.root.`/user/mapr/MixTable` t where t.row_key= (select max(convert_fromutf8(i.KeyA.ENTRY_KEY)) from dfs.root.`/user/mapr/TableIMSI` i where i.row_key='460021050005636') row_keys can return at most 1 row. So the physical planning must leverage MapRDB row_key push down to execute the sub query, with its results execute the outer query. Currently only the inner query is pushed down. The outer query requires a table scan. -- This message was sent by Atlassian JIRA (v7.6.3#76005)