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Posted to issues@calcite.apache.org by "Julian Hyde (Jira)" <ji...@apache.org> on 2023/03/21 02:01:00 UTC
[jira] [Updated] (CALCITE-5580) Add SPLIT function (enabled in BigQuery library)
[ https://issues.apache.org/jira/browse/CALCITE-5580?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Julian Hyde updated CALCITE-5580:
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Summary: Add SPLIT function (enabled in BigQuery library) (was: Add SPLIT() Function (Enabled for BigQuery))
> Add SPLIT function (enabled in BigQuery library)
> ------------------------------------------------
>
> Key: CALCITE-5580
> URL: https://issues.apache.org/jira/browse/CALCITE-5580
> Project: Calcite
> Issue Type: Improvement
> Reporter: Tanner Clary
> Assignee: Tanner Clary
> Priority: Major
> Labels: pull-request-available
> Time Spent: 50m
> Remaining Estimate: 0h
>
> BigQuery offers the {{SPLIT()}} function which splits a string at an optionally-specified delimiter into a string array. If no delimiter is specified, it is default to a comma. If the string is empty, an array of a single empty string is returned. If the delimiter is not found in the string, an array with a single element (the string) is returned.
> In BigQuery, the function can also accept bytes. In order to implement this, I think some modifications to ByteString.java may be required. I will probably not do this at least for my initial draft. If anyone has any suggestions or guidance on whether or not it should be supported, I would appreciate it.
> Documentation and example cases may be found below.
> EXAMPLE: {{SPLIT('h,e,l,l,o')}} would return: {{[h, e, l, l, o]}}.
> EXAMPLE: {{SPLIT('h-e-l-l-o', '-')}} would return: {{[h, e, l, l, o]}}.
> [BigQuery docs|https://cloud.google.com/bigquery/docs/reference/standard-sql/string_functions#split]
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