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Closes #1882

Extend CreateTable CLUSTER BY parsing to support general expressions instead of only identifiers. This allows statements like CLUSTER BY (to_date(ts)) to be parsed correctly.
https://docs.snowflake.com/en/user-guide/tables-clustering-keys#defining-a-clustering-key-for-a-table

Currently supported:

CLUSTER BY (a, b)
CLUSTER BY a, b

Extended support:

CLUSTER BY (a, b, my_func(c))

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@iffyio iffyio left a comment

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LGTM! Thanks @osipovartem!
cc @alamb

@iffyio iffyio merged commit e406422 into apache:main Jun 16, 2025
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solontsev pushed a commit to solontsev/datafusion-sqlparser-rs that referenced this pull request Jun 20, 2025
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Add support for snowflake cluster by expressions

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