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https://issues.apache.org/jira/browse/DRILL-3232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14983613#comment-14983613
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ASF GitHub Bot commented on DRILL-3232:
---------------------------------------
Github user StevenMPhillips commented on a diff in the pull request:
https://github.com/apache/drill/pull/207#discussion_r43563231
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/expr/fn/FunctionGenerationHelper.java
---
@@ -127,7 +133,7 @@ protected static boolean isComparableType(MajorType
type) {
private static String formatCanNotCompareMsg(MajorType left, MajorType
right) {
StringBuilder sb = new StringBuilder();
- sb.append("Map, Array or repeated scalar type should not be used in
group by, order by or in a comparison operator. Drill does not support compare
between ");
+ sb.append("Map, Array, Union or repeated scalar type should not be
used in group by, order by or in a comparison operator. Drill does not support
compare between ");
--- End diff --
Yes, they could be comparable, but that functionality has not been
implemented yet.
> Modify existing vectors to allow type promotion
> -----------------------------------------------
>
> Key: DRILL-3232
> URL: https://issues.apache.org/jira/browse/DRILL-3232
> Project: Apache Drill
> Issue Type: Sub-task
> Components: Execution - Codegen, Execution - Data Types, Execution -
> Relational Operators, Functions - Drill
> Reporter: Steven Phillips
> Assignee: Hanifi Gunes
> Fix For: 1.3.0
>
>
> Support the ability for existing vectors to be promoted similar to supported
> implicit casting rules.
> For example:
> INT > DOUBLE > STRING > EMBEDDED
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