Yin Huai created SPARK-12957: -------------------------------- Summary: Derive and propagate data constrains in logical plan Key: SPARK-12957 URL: https://issues.apache.org/jira/browse/SPARK-12957 Project: Spark Issue Type: New Feature Components: SQL Reporter: Yin Huai
Based on the semantic of a query plan, we can derive data constrains (e.g. if a filter defines {{a > 10}}, we know that the output data of this filter satisfy the constrain of {{a > 10}} and {{a is not null}}). We should build a framework to derive and propagate constrains in the logical plan, which can help us to build more advanced optimizations. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org