[jira] [Commented] (PIG-4750) REPLACE_MULTI should compile Pattern once and reuse it

["Nandor Kollar (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PIG-4750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15561830#comment-15561830 ] 

Nandor Kollar commented on PIG-4750:
------------------------------------

Attached a patch and two test cases. This patch changes the REPLACE_MULTI semantic:
- no chaining of replacement rule, all are applied now in one go, rule "a" -> "b" and "b" -> "c" on "a b" will result in "b c" and not "c c", like before
- keys in the replacement map are treated as plain string, and not regex: "|" -> "x" will replace all "|" to "x" in input
[~rohini] could you please have a look at my patch?

> REPLACE_MULTI should compile Pattern once and reuse it
> ------------------------------------------------------
>
>                 Key: PIG-4750
>                 URL: https://issues.apache.org/jira/browse/PIG-4750
>             Project: Pig
>          Issue Type: Improvement
>            Reporter: Rohini Palaniswamy
>            Assignee: Nandor Kollar
>              Labels: newbie
>         Attachments: PIG-4750.patch
>
>
> Details in https://issues.apache.org/jira/browse/PIG-4673?focusedCommentId=14876190&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14876190



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