paul-rogers commented on a change in pull request #1953: Add docs for Drill Metastore URL: https://github.com/apache/drill/pull/1953#discussion_r366677818
########## File path: _docs/sql-reference/sql-commands/007-analyze-table-refresh-metadata.md ########## @@ -0,0 +1,158 @@ +--- +title: "ANALYZE TABLE REFRESH METADATA" +parent: "SQL Commands" +date: 2020-01-13 +--- + +Starting from Drill 1.17, you can store table metadata (including schema and computed statistics) into Drill Metastore. +This metadata will be used when querying a table for more optimal plan creation. Review comment: Drill 1.17 introduces the Drill Metastore which stores the table schema and table statistics. Statistics allow Drill to better create optimal query plans. The Metastore is an Alpha feature; it is subject to change. We encourage you to try it and provide feedback. Because the Metastore is in Beta, the SQL commands and Metastore formats may change in the next release. (Looks like this appears in Limitations below, but it should be stated right up front. Note the addition of warnings of what will change. Please explain how this feature relates to the previous Parquet metadata feature. In particular, will enabling this feature break existing behavior?) ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services
