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https://issues.apache.org/jira/browse/CALCITE-1309?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15434440#comment-15434440
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Jark Wu commented on CALCITE-1309:
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Hi, Julian, it's a little more complex. After change the parser, the validator
will go into unpredictable error.
> Support LATERAL TABLE
> ---------------------
>
> Key: CALCITE-1309
> URL: https://issues.apache.org/jira/browse/CALCITE-1309
> Project: Calcite
> Issue Type: New Feature
> Components: core
> Reporter: Jark Wu
> Assignee: Julian Hyde
> Fix For: 1.9.0
>
>
> {code}
> SELECT MyTable.*, t.s FROM MyTable, LATERAL TABLE(split(MyTable.a)) AS t(s)
> {code}
> will throw “Encountered "LATERAL TABLE" at line 1, column 38.” exception.
> We should support LATERAL TABLE , and allow table function to see earlier
> tables in the FROM clause.
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