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https://issues.apache.org/jira/browse/SPARK-54343?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18038421#comment-18038421
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Daniel Tenedorio commented on SPARK-54343:
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I updated the affected Spark version to 4.2.0 since this new functionality will
not be backported to Spark 4.1.0.
> Document IDENTIFIER clause and parameter marker improvements
> ------------------------------------------------------------
>
> Key: SPARK-54343
> URL: https://issues.apache.org/jira/browse/SPARK-54343
> Project: Spark
> Issue Type: Improvement
> Components: Documentation
> Affects Versions: 4.2.0
> Reporter: Serge Rielau
> Priority: Major
> Labels: pull-request-available
>
> The following three improvements need to be documented:
> * Parameter markers are allowed in SQL wherever literals are allowed (not
> just in expressions
> * String coalescing can be don wherever strings literals are allowed (not
> just in expressions)
> * The IDENTIFIER clause is allowed everywhere identifiers are allowed, as
> long as the input is a literal string (whcih may be coalesced and teh result
> of parameter substitution.
>
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