[
https://issues.apache.org/jira/browse/CALCITE-3005?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Forward Xu updated CALCITE-3005:
--------------------------------
Description:
Some string functions including LEFT, RIGHT are not implemented now. It would
be great if these functions can be implemented.
[{{LEFT(_{{str}}_,_{{len}}_)}}|https://dev.mysql.com/doc/refman/8.0/en/string-functions.html#function_left]
Returns the leftmost _{{len}}_ characters from the string _{{str}}_, or
{{NULL}} if any argument is {{NULL}}.
[{{RIGHT(_{{str}}_,_{{len}}_)}}|https://dev.mysql.com/doc/refman/8.0/en/string-functions.html#function_right]
Returns the rightmost _{{len}}_ characters from the string _{{str}}_, or
{{NULL}} if any argument is {{NULL}}.
was:Some string functions including REPEAT, SPACE, SOUNDEX, DIFFERENCE are
not implemented now. It would be great if these functions can be implemented.
> Implement string functions: LEFT, RIGHT
> ---------------------------------------
>
> Key: CALCITE-3005
> URL: https://issues.apache.org/jira/browse/CALCITE-3005
> Project: Calcite
> Issue Type: New Feature
> Reporter: Forward Xu
> Assignee: Forward Xu
> Priority: Major
>
> Some string functions including LEFT, RIGHT are not implemented now. It would
> be great if these functions can be implemented.
> [{{LEFT(_{{str}}_,_{{len}}_)}}|https://dev.mysql.com/doc/refman/8.0/en/string-functions.html#function_left]
> Returns the leftmost _{{len}}_ characters from the string _{{str}}_, or
> {{NULL}} if any argument is {{NULL}}.
> [{{RIGHT(_{{str}}_,_{{len}}_)}}|https://dev.mysql.com/doc/refman/8.0/en/string-functions.html#function_right]
> Returns the rightmost _{{len}}_ characters from the string _{{str}}_, or
> {{NULL}} if any argument is {{NULL}}.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
