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Sean Hsuan-Yi Chu commented on DRILL-4642: ------------------------------------------ Drill PR: https://github.com/apache/drill/pull/489 Calcite: https://github.com/hsuanyi/incubator-calcite/tree/DRILL-4642 Note the calcite change above cannot be pushed back to apache calcite since it is a followup patch in DrillCalcite, titled "[StarColumn] Support select * from schema-less table in execution engine like Drill. Include support for view, subquery, CTE. Enable Drill's support of select * in View, SubQuery, CTE. Skip expanding expression in with clause in Expander visitor." > Let RexBuilder.ensureType() mechanism take place during Rex conversion. > ----------------------------------------------------------------------- > > Key: DRILL-4642 > URL: https://issues.apache.org/jira/browse/DRILL-4642 > Project: Apache Drill > Issue Type: Bug > Components: Query Planning & Optimization > Reporter: Sean Hsuan-Yi Chu > Assignee: Sean Hsuan-Yi Chu > Fix For: 1.7.0 > > > In DRILL-4372, the logic of ensuring same type is removed since, in some case > such as below, undesirable cast function will be added and cause failure. > {code} > SELECT * > FROM T > WHERE (cast(col1 as timestamp) - to_timestamp(col2,'YYYY-MM-dd HH:mm:ss') < > interval 'X XX:XX:XX' day to second) > {code} > The fundamental reason for this behavior roots in Drill-Calcite [1], where > SqlNode WHERE is expanded to a new object but is not passed into validation > step. > [1] > https://github.com/mapr/incubator-calcite/blob/DrillCalcite1.4.0-mapr-1.4.0/core/src/main/java/org/apache/calcite/sql/validate/SqlValidatorImpl.java#L3362 -- This message was sent by Atlassian JIRA (v6.3.4#6332)