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From "Hyunsik Choi (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (TAJO-437) Timestamp literal support
Date Sun, 22 Dec 2013 13:54:52 GMT

     [ https://issues.apache.org/jira/browse/TAJO-437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hyunsik Choi updated TAJO-437:
------------------------------

    Attachment: TAJO-437_2.patch

Thank you for the review. I uploaded the second patch which reflects your comments.

> Timestamp literal support
> -------------------------
>
>                 Key: TAJO-437
>                 URL: https://issues.apache.org/jira/browse/TAJO-437
>             Project: Tajo
>          Issue Type: Sub-task
>          Components: operator/expression, parser
>            Reporter: Hyunsik Choi
>            Assignee: Hyunsik Choi
>            Priority: Minor
>              Labels: newbie
>             Fix For: 0.8-incubating
>
>         Attachments: TAJO-437.patch, TAJO-437_2.patch
>
>
> Timestamp literal represents timestamp constant. It has the following bnf grammar.
> {code}
> <timestamp literal>    ::=   TIMESTAMP <timestamp string>
> <timestamp string>    ::=   <quote> <unquoted timestamp string> <quote>
> <unquoted timestamp string>    ::=   <unquoted date string> <space>
<unquoted time string>
> <unquoted date string>    ::=   <date value>
> <unquoted time string>    ::=   <time value> [ <time zone interval>
]
> <date value>    ::=   <years value> <minus sign> <months value>
<minus sign> <days value>
> <time value>    ::=   <hours value> <colon> <minutes value> <colon>
<seconds value>
> <time zone interval>    ::=   <sign> <hours value> <colon> <minutes
value>
> {code}



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