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ASF GitHub Bot commented on DRILL-4642: --------------------------------------- Github user hsuanyi commented on a diff in the pull request: https://github.com/apache/drill/pull/489#discussion_r62117505 --- Diff: exec/java-exec/src/test/java/org/apache/drill/TestFunctionsWithTypeExpoQueries.java --- @@ -213,7 +221,7 @@ public void tesIsNull() throws Exception { List<Pair<SchemaPath, TypeProtos.MajorType>> expectedSchema = Lists.newArrayList(); TypeProtos.MajorType majorType = TypeProtos.MajorType.newBuilder() .setMinorType(TypeProtos.MinorType.BIT) - .setMode(TypeProtos.DataMode.REQUIRED) + .setMode(TypeProtos.DataMode.OPTIONAL) --- End diff -- In fact, I meant to let the tests in this test-suite run with Limit-0 optimization. However, that option is off by default. So I added https://github.com/apache/drill/pull/489/files#diff-0e0d4b8f1e54d2a7e8b6bc04d8606bf7R35 However, that exposed an issue here: https://issues.apache.org/jira/browse/DRILL-4656 So I think we should firstly turn this test off until we fix DRILL-4656 > 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)