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https://issues.apache.org/jira/browse/CALCITE-7325?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18044520#comment-18044520
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Mihai Budiu commented on CALCITE-7325:
--------------------------------------
Fixed in
[https://github.com/apache/calcite/commit/081e4420207a887d6ed80591bd7be45c986d05ea]
Thank you for the report and fix [~jkk123]
> Incorrect VARIANT signatures in SqlItemOperator
> -----------------------------------------------
>
> Key: CALCITE-7325
> URL: https://issues.apache.org/jira/browse/CALCITE-7325
> Project: Calcite
> Issue Type: Bug
> Reporter: Jinkun Liu
> Assignee: Jinkun Liu
> Priority: Trivial
> Labels: pull-request-available
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> In core/src/main/java/org/apache/calcite/sql/fun/SqlItemOperator.java, the
> behavior and the documented signatures for VARIANT are inconsistent between
> getAllowedSignatures and getChecker:
> * getAllowedSignatures declares the following signature for ITEM:
> ** <VARIANT>[<ANY>]
> * However, getChecker currently returns:
> **
> OperandTypes.family(SqlTypeFamily.INTEGER).or(OperandTypes.family(SqlTypeFamily.CHARACTER))
> for VARIANT , effectively allowing only integer or character indexes.
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