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https://issues.apache.org/jira/browse/CALCITE-2395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16549688#comment-16549688
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Enrico Olivelli commented on CALCITE-2395:
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Should be consider that the list of identifiers is a list of columns or a list 
of tables?
It seems to be a list of tables in postgres and a list of cols in oracle/ibm


> Support SELECT xxx FROM TABLE FOR UPDATE syntax
> -----------------------------------------------
>
>                 Key: CALCITE-2395
>                 URL: https://issues.apache.org/jira/browse/CALCITE-2395
>             Project: Calcite
>          Issue Type: New Feature
>          Components: core
>    Affects Versions: 1.16.0
>            Reporter: Enrico Olivelli
>            Assignee: Julian Hyde
>            Priority: Major
>
> I am using Calcite SQL Parser and Volcano Planner.
> I need to support SQL syntax
> SELECT ... FROM table FOR UPDATE
>  
> see for instance PostGre docs
> [https://www.postgresql.org/docs/9.5/static/sql-select.html.]
>  
> I would like at least to support this syntax at SQL Parser level, the 'for 
> update' spec should be reported by the RelNode so that the system can take it 
> into account and perform explicit locking.
>  
> Linked downstream project issue:
> https://github.com/diennea/herddb/issues/228
>  
>  
>  



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