[
https://issues.apache.org/jira/browse/PHOENIX-2064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14612977#comment-14612977
]
James Taylor commented on PHOENIX-2064:
---------------------------------------
Add a return true to the if statement at the top of evaluate method:
{code}
if (position == elements.length) {
ptr.set(valuePtr.get(), valuePtr.getOffset(), valuePtr.getLength());
return true;
}
{code}
Also, in init(), do valuePtr.set(ByteUtil.EMPTY_BYTE_ARRAY);
Otherwise, I'm not sure - I'd need to debug it. The idea is to return the
cached value, but we'd only do it when position has been initialized to not be
-1 in the reset call. This is a kind of partial evaluation mode that executes
on the server-side during filtering.
> 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.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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
