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https://issues.apache.org/jira/browse/PHOENIX-2064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14613252#comment-14613252
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James Taylor commented on PHOENIX-2064:
---------------------------------------
Looks good. Do the tests all pass now? One minor nit, make valuePtr final and
make it an ImmutableBytesWritable instead of an ImmutableBytesPtr. The
difference is that ImmutableBytesPtr caches the hashCode for better performance
if it's used in a hash map (which it won't be):
{code}
+ private final ImmutableBytesWritable valuePtr = new
ImmutableBytesWritable();
{code}
> ARRAY constructor doesn't work when used in COUNT DISTINCT
> ----------------------------------------------------------
>
> Key: PHOENIX-2064
> URL: https://issues.apache.org/jira/browse/PHOENIX-2064
> Project: Phoenix
> Issue Type: Bug
> Reporter: James Taylor
> Assignee: Dumindu Buddhika
> Attachments: PHOENIX-2064-v2.patch, PHOENIX-2064-v3.patch,
> PHOENIX-2064.patch
>
>
> As a workaround for PHOENIX-2062, I tried the following query:
> {code}
> SELECT COUNT(DISTINCT ARRAY[a.col1, b.col2]) ...
> {code}
> However, this always returns the full number of rows which is wrong.
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