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https://issues.apache.org/jira/browse/CALCITE-5744?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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xiong duan resolved CALCITE-5744.
---------------------------------
Resolution: Fixed
> Add MAP_FROM_ARRAYS, STR_TO_MAP for Spark dialect
> -------------------------------------------------
>
> Key: CALCITE-5744
> URL: https://issues.apache.org/jira/browse/CALCITE-5744
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.35.0
> Reporter: jackylau
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.35.0
>
>
> MAP_FROM_ARRAYS (array1, array2)
> * Returns a map created from an *array1* and *array2. Note that the lengths
> of two arrays should be the same
> {code:java}
> // code placeholder
> > SELECT map_from_arrays(array(1.0, 3.0), array('2', '4'));
> {1.0:"2",3.0:"4"} {code}
>
>
> STR_TO_MAP(string[, stringDelimiter[, keyValueDelimiter]])
> - Returns a map after splitting the *string* into key/value pairs using
> delimiters. Default delimiters are ',' for *stringDelimiter* and ':' for
> *keyValueDelimiter* Both {{pairDelim}} and {{keyValueDelim}} are treated as
> regular expressions.
> *Examples:*
> {code:java}
> > SELECT str_to_map('a:1,b:2,c:3', ',', ':');
> - {"a":"1","b":"2","c":"3"}
> > SELECT str_to_map('a');
> {"a":null} {code}
>
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