Sean Hsuan-Yi Chu created DRILL-4642:
----------------------------------------
Summary: 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)
