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https://issues.apache.org/jira/browse/PIG-2994?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13482135#comment-13482135
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Prasanth J commented on PIG-2994:
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The reason I thought of using \ instead of other char is that, it will be easy
for postgres users(not sure if any other databases support shell shortcuts) to
easily adapt to this convention (colon shouldn't be hard though). This
convention will be more useful for viewing/exploring HCat tables, and for
frequently used diagnostic operators (dump, describe, explain, illustrate).
Since these operators doesn't start with t,r,n, IMHO it will not be confused
with tab, newline.
> Grunt shortcuts
> ---------------
>
> Key: PIG-2994
> URL: https://issues.apache.org/jira/browse/PIG-2994
> Project: Pig
> Issue Type: New Feature
> Components: grunt
> Reporter: Prasanth J
> Priority: Minor
>
> This feature is aimed at providing shortcuts for frequently used commands
> like illustrate, dump, explain, describe, quit, help etc. This feature is
> inspired from postgres(psql) shortcuts. I tried implementing a simple
> shortcut for quitting the grunt shell using \q with very minimal changes. I
> think this feature will help save many keystrokes for users. If this feature
> looks useful I can submit the current patch for review and go ahead with
> implementing the following shortcuts
> \i <alias> - illustrate
> \e <alias> - explain
> \de <alias> - describe
> \du <alias> - dump
> \h - help
> This will also be useful to view information about tables/statistics stored
> in HCatalog similar to the way psql does.
> \dt <alias> - display table
> \dm - display metadata
> etc..
> except \t, \r and \n delimiters we should be able to use all other characters
> as shortcuts.
> Please let me know your thoughts.
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