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(parent: eca456e) | patch

author	Noah Misch <noah@leadboat.com>
	Sat, 25 Jan 2025 19:28:14 +0000 (11:28 -0800)
committer	Noah Misch <noah@leadboat.com>
	Sat, 25 Jan 2025 19:28:18 +0000 (11:28 -0800)
commit	1587f7b9fc1a16df8b01b4f5f9e3c949325160b2
tree	3c84d0ddc24c268560aa2ec2a16aaef5fca8387a	tree
parent	eca456edc1caf4e93b5d4480b201cd091acede1d	commit \| diff

Merge copies of converting an XID to a FullTransactionId.

Assume twophase.c is the performance-sensitive caller, and preserve its
choice of unlikely() branch hint. Add some retrospective rationale for
that choice. Back-patch to v17, for the next commit to use it.

Reviewed (in earlier versions) by Michael Paquier.

Discussion: https://postgr.es/m/17821-dd8c334263399284@postgresql.org
Discussion: https://postgr.es/m/20250116010051.f3.nmisch@google.com

This is the main PostgreSQL git repository.