[jira] Updated: (PIG-1244) parameter syntax in scripts, add support for ${VAR} (in addition to current $VAR)

["Olga Natkovich (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/PIG-1244?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Olga Natkovich updated PIG-1244:
--------------------------------

    Fix Version/s:     (was: 0.7.0)

We are entering stabilization phase for Pig 0.7.0 and would like to avoid adding new features.

> parameter syntax in scripts, add support for ${VAR} (in addition to current $VAR)
> ---------------------------------------------------------------------------------
>
>                 Key: PIG-1244
>                 URL: https://issues.apache.org/jira/browse/PIG-1244
>             Project: Pig
>          Issue Type: Improvement
>          Components: impl
>         Environment: all
>            Reporter: Alejandro Abdelnur
>
> Currently parameter syntax in pig scripts is $VAR.
> This complicates scripts as parameter-literal concatenation is not supported. For example:
> An occurrence of '$OUT_tmp' in a script resolves to a parameter 'OUT_tmp', it would be desirable this to resolve to a contactenation of $OUT&_tmp
> This can be solved by supporting parameter syntax ${VAR}, so the pig parser can identify the end of the parameter name.
> Adding support for ${VAR} syntax in addition of $VAR would maintain backwards compatibility. Changing to syntax ${VAR} syntax will break backwards compatibility.

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