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https://issues.apache.org/jira/browse/CALCITE-7476?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tamas Mate reassigned CALCITE-7476:
-----------------------------------
Assignee: Tamas Mate
> Add a dedicated SqlColonOperator for colon field access
> -------------------------------------------------------
>
> Key: CALCITE-7476
> URL: https://issues.apache.org/jira/browse/CALCITE-7476
> Project: Calcite
> Issue Type: Improvement
> Components: core
> Affects Versions: 1.41.0
> Reporter: Tamas Mate
> Assignee: Tamas Mate
> Priority: Major
>
> CALCITE-7448 adds parser support for colon field access syntax such as
> `v:field` and `v:['field']`.
> Right now this syntax is normalized to existing DOT / ITEM operators, which
> means later validation and planning cannot tell whether the original syntax
> used `:` or `.`.
> We should consider adding a dedicated `SqlColonOperator`, similar to
> `SqlDotOperator`, so Calcite can preserve that distinction in the SQL tree
> and apply colon-specific rules more cleanly. One example would be validating
> colon access only for `VARIANT` values.
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