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From DaveBirdsall <...@git.apache.org>
Subject [GitHub] incubator-trafodion pull request #883: [TRAFODION-2403] update sql reference...
Date Wed, 21 Dec 2016 15:43:34 GMT
Github user DaveBirdsall commented on a diff in the pull request:

    https://github.com/apache/incubator-trafodion/pull/883#discussion_r93461525
  
    --- Diff: docs/sql_reference/src/asciidoc/_chapters/sql_language_elements.adoc ---
    @@ -3352,6 +3354,60 @@ The escape character indicates that the underscore in 'FLOPPY_DISK'
is
     part of the string to search for, not a wild-card character.
     
     <<<
    +[[regexp_predicate]]
    +=== REGEXP Predicate
    +
    +Performs a pattern match of a string expression against a pattern . 
    +The pattern can be an extended regular expression. 
    +Returns 1 if expression matches pattern; otherwise it returns 0. 
    +If either expression or pattern is NULL, the result is NULL.
    +
    +[[regexp_syntax]]
    +==== Syntax
    +```
    +match-value [NOT] REGEXP pattern
    +```
    +
    +* `_match-value_`
    ++
    +is a character value expression that specifies a set of strings to
    +search for that match the _pattern_.
    +
    +* `_pattern_`
    ++
    +is a character value expression that specifies the pattern string for
    +the search in form of Regular Expression.
    +The Trafodion Regular Expression is following the POSIX regular expression rules.
    --- End diff --
    
    Grammar nits. Possible wordsmith: "is a character value expression that specifies a regular
expression. Trafodion regular expressions follow POSIX regular expression rules."


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