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https://issues.apache.org/jira/browse/CALCITE-2917?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16792239#comment-16792239
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Julian Hyde commented on CALCITE-2917:
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As I said, it's just called DEFAULT, but all of the paths we support into the
parser set it to double-quoted by default.
I saw your PR. There are no tests. I suspect that you are using an unsupported
route into the parser, which is why you are seeing this problem and no one else
is. Please add some tests to the PR so that we know what your use case is.
> Calcite should use double quote as default identifier delimiter
> ---------------------------------------------------------------
>
> Key: CALCITE-2917
> URL: https://issues.apache.org/jira/browse/CALCITE-2917
> Project: Calcite
> Issue Type: Bug
> Components: core
> Affects Versions: 1.17.0, 1.18.0
> Reporter: Nan Deng
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> From CALCITE-1217 I found this statement:
> {code:java}
> (Calcite) Its default identifier quoting character is double-quote.
> {code}
> this is not consistent with what's been said in
> [Parser.jj|https://github.com/apache/calcite/blob/50012d221d6e9a5e42a957ab0723e0f706b25be3/core/src/main/codegen/templates/Parser.jj#L6976]
> which defines bracket as the default identifier delimiter:
>
> It should be one or another.
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