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The new AST driver already supports SHOW COLUMNS statement.

This PR adds support for SHOW FULL COLUMNS.

@JanJakes JanJakes requested a review from a team January 19, 2026 16:40
@adamziel
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Looking great, thank you @JanJakes! My only not is that a single WordPress core unit test failed on this PR. I'm not sure how much that's related to this change and how much to something in WP trunk.

@JanJakes
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The following tests were expected to fail but passed

That's a lovely CI failure. I had no idea WPDB used SHOW FULL COLUMNS internally: https://github.com/WordPress/wordpress-develop/blob/16aa10f04dfaa8b9084f05213a9371526dc3e79b/src/wp-includes/class-wpdb.php#L3234

Fixed.

@adamziel adamziel merged commit 9334343 into develop Jan 20, 2026
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@JanJakes JanJakes deleted the show-full-columns branch January 20, 2026 11:24
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3 participants