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https://issues.apache.org/jira/browse/CALCITE-2507?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16599453#comment-16599453
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Hanumath Rao Maduri commented on CALCITE-2507:
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I have opened a pull request for this issue.
[https://github.com/apache/calcite/pull/812]
Please let me know if it is looks fine.
> Aliasing a star in select list should throw a parsing error.
> -------------------------------------------------------------
>
> Key: CALCITE-2507
> URL: https://issues.apache.org/jira/browse/CALCITE-2507
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.17.0
> Reporter: Hanumath Rao Maduri
> Assignee: Julian Hyde
> Priority: Minor
> Fix For: 1.18.0
>
>
> Currently aliasing a Star column is not throwing an exception in parser.
> There is a TODO for a simple test case (in SqlParserTest.java) to throw an
> error in parser phase itself.
> Change the parser grammar so as to report an error in parsing phase itself.
> {code:java}
> // TODO: should fail in parser
> @Test public void testStarAsFails() {
> sql("select * as x from emp")
> .ok("SELECT * AS `X`\n"
> + "FROM `EMP`");
> }
> {code}
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