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https://issues.apache.org/jira/browse/ASTERIXDB-2667?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hussain Towaileb updated ASTERIXDB-2667:
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Summary: Share code between string functions (was: Add support to CONCAT2
function)
> Share code between string functions
> -----------------------------------
>
> Key: ASTERIXDB-2667
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-2667
> Project: Apache AsterixDB
> Issue Type: Improvement
> Components: FUN - Functions
> Affects Versions: 0.9.4.1
> Reporter: Hussain Towaileb
> Assignee: Hussain Towaileb
> Priority: Major
> Fix For: 0.9.5
>
>
> CONCAT2 is similar to CONCAT function, which simply a string concatenation of
> all the provided parameters, however, it allows specifying a separator to be
> used between the concatenated strings as a first argument, and accepts arrays
> of strings that get flatted and concatenated.
>
> If a single argument only is provided with the separator, then the separator
> is not used, and only a single string is returned.
>
> Examples:
> {code:java}
> concat2("-", "1", "2") -> "1-2"
> concat2("-", "1", ["2", "3"]) -> "1-2-3"
> concat2("-", "1") -> "1"
> concat2("-", ["1"]) -> "1"
> {code}
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