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https://issues.apache.org/jira/browse/DRILL-3232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14981852#comment-14981852
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ASF GitHub Bot commented on DRILL-3232:
---------------------------------------
Github user jacques-n commented on a diff in the pull request:
https://github.com/apache/drill/pull/207#discussion_r43471025
--- Diff: exec/java-exec/src/main/codegen/templates/MapWriters.java ---
@@ -52,9 +52,18 @@
private final Map<String, FieldWriter> fields = Maps.newHashMap();
<#if mode == "Repeated">private int currentChildIndex = 0;</#if>
- public ${mode}MapWriter(${containerClass} container, FieldWriter parent)
{
+ private final boolean unionEnabled;
+ private final boolean unionInternalMap;
--- End diff --
Can you give a description of the unionInternalMap parameter and why that
is needed in a javadoc?
> 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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