Abhishek Girish created DRILL-5065:
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Summary: Optimize count( *) queries on MapR-DB JSON Tables
Key: DRILL-5065
URL: https://issues.apache.org/jira/browse/DRILL-5065
Project: Apache Drill
Issue Type: Improvement
Components: Storage - MapRDB
Affects Versions: 1.9.0
Environment: Clusters with MapR v5.2.0 and above
Reporter: Abhishek Girish
Assignee: Smidth Panchamia
The JSON FileReader optimizes count(* ) queries, by only counting the number of
records in the files and discarding the data. This makes the query execution
faster & efficient.
We need a similar feature in the MapR format plugin (maprdb) to optimize _id
only projection & count(* ) queries on MapR-DB JSON Tables.
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