doc PG 18 relnotes: update chapter tags for recent commit
Branch------master
Details-------https://git.postgresql.org/pg/commitdiff/9fd989ff9937966a8c3f28bfb6cce8f8071b3289
Modified Files--------------doc/src/sgml/release-18.sgml | 1 +1 file changed, 1 insertion(+)
