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From "Alicia Ying Shu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-2934) Checking a coerce expression at top level should not be necessary for Union All query
Date Thu, 02 Jun 2016 07:16:59 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-2934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15311860#comment-15311860
] 

Alicia Ying Shu commented on PHOENIX-2934:
------------------------------------------

Uploaded the patch. It fixes the issue of PChar not updating to desiredMaxLength when needed.
This issue manifested in Union All query and should be committed after PHOENIX-2886.

> Checking a coerce expression at top level should not be necessary for Union All query
> -------------------------------------------------------------------------------------
>
>                 Key: PHOENIX-2934
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-2934
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Alicia Ying Shu
>            Assignee: Alicia Ying Shu
>         Attachments: PHOENIX-2934.patch
>
>
> When working on PHOENIX-2886, found that we need special handling of coerce expression.
Otherwise the following query would fail.
> {code}
> create table person ( id bigint not null primary key, firstname char(10), lastname varchar(10)
);
> select id, cast( 'foo' as char(10)) firstname, lastname from person union all select
* from person;
> {code}
> Checking a coerce expression at top level should not be necessary. Need to find out root
cause on coerceExpression. 



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