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https://issues.apache.org/jira/browse/CALCITE-3931?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17085481#comment-17085481
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Julian Hyde commented on CALCITE-3931:
--------------------------------------
I think you can do it similar to [code in Parser.jj|
https://github.com/apache/calcite/blob/f11115a2fe9e360f38910f112288581040e0ced5/core/src/main/codegen/templates/Parser.jj#L1004-L1008]:
{code}
<#-- Add methods to parse additional statements here -->
<#list parser.statementParserMethods as method>
LOOKAHEAD(2) stmt = ${method}
|
</#list>
{code}
> Add LOOKAHEAD(2) for methods defined in createStatementParserMethods
> --------------------------------------------------------------------
>
> Key: CALCITE-3931
> URL: https://issues.apache.org/jira/browse/CALCITE-3931
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.22.0
> Reporter: Danny Chen
> Assignee: Danny Chen
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.23.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> The default LOOKAHEAD is 1 which is very probably to conflict, especially for
> custom parse block like SqlCreate.
>
> Sets the LOOKAHEAD(2) to reduce conflict.
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