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https://issues.apache.org/jira/browse/PIG-1046?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12828282#action_12828282
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Ashutosh Chauhan commented on PIG-1046:
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Alan suggested use of identifier or keywords should be taken up as a whole for
the language (instead of one clause like join at a time). Doing that is out of
scope of this jira as well as for 0.7 release. It will be taken up some point
later in time. For now we will support both single and double quoted strings
for join algorithm specification and print deprecation warning when user uses
double-quoted strings.
> join algorithm specification is within double quotes
> ----------------------------------------------------
>
> Key: PIG-1046
> URL: https://issues.apache.org/jira/browse/PIG-1046
> Project: Pig
> Issue Type: Bug
> Reporter: Thejas M Nair
> Assignee: Ashutosh Chauhan
> Fix For: 0.7.0
>
> Attachments: pig-1046.patch
>
>
> This fails -
> j = join l1 by $0, l2 by $0 using 'skewed';
> This works -
> j = join l1 by $0, l2 by $0 using "skewed";
> String constants are single-quoted in pig-latin. If the algorithm
> specification is supposed to be a string, specifying it within single quotes
> should be supported.
> Alternatively, we should be using identifiers here, since these are
> pre-defined in pig users will not be specifying arbitrary values that might
> not be valid identifier.
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