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https://issues.apache.org/jira/browse/CALCITE-5870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17748999#comment-17748999
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LakeShen commented on CALCITE-5870:
-----------------------------------
Hi [~julianhyde],I will improve the PR content according to your
suggestion,thank you for reviewing my pr.
> Core parser support DECIMAL String literal to SqlNumericLiteral sql grammar
> ----------------------------------------------------------------------------
>
> Key: CALCITE-5870
> URL: https://issues.apache.org/jira/browse/CALCITE-5870
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Reporter: LakeShen
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.36.0
>
> Attachments: image-2023-07-24-19-23-30-316.png,
> image-2023-07-24-19-26-44-131.png
>
>
> In Postgresql,It supports the following sql grammar:
> {code:java}
> select DECIMAL '99.999' {code}
> Postgresql converts DECIMAL '99.999' to numeric constants：
> !image-2023-07-24-19-23-30-316.png|width=399,height=186!
> Now babel sql parser converts DECIMAL '99.999' to AS SqlBasicCall,like this:
> !image-2023-07-24-19-26-44-131.png|width=529,height=224!
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