Add datafusion.extract #958
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* Add list_cat, list_concat * Add list_repeat * docs: add examples for list_cat, list_concat, and list_repeat functions * Amend list_repeat code example - literal * Amend list_ to array_ in documentation
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Which issue does this PR close?
Completes a task in #463
Rationale for this change
This PR introduces the implementation of the EXTRACT function, which allows extracting specific temporal units (e.g., YEAR, MONTH, DAY) from date or timestamp fields. It is an alias of
date_part.What changes are included in this PR?
Functionality:
Adds the implementation of the EXTRACT subscalar function, it supports extracting temporal units like YEAR, MONTH, DAY, etc., from supported date, timestamp, and time data types.
Tests:
Adds tests for EXTRACT.
Are there any user-facing changes?
Yes, this PR adds the EXTRACT function to the API, enabling users to perform temporal extraction operations directly.