From 4f63f70f56c7f4141c7332a3fd507ba8fa1292d3 Mon Sep 17 00:00:00 2001 From: Ian Barwick Date: Fri, 21 Aug 2026 14:43:06 +0900 Subject: [PATCH v2] doc: clarify AS requirement when VALUES used in a FROM clause From PostgreSQL 16 (commit bcedd8f), subquery aliases in the FROM clause are optional, so update the VALUES reference documentation to reflect this. --- doc/src/sgml/ref/values.sgml | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/doc/src/sgml/ref/values.sgml b/doc/src/sgml/ref/values.sgml index 4bf7bfdffee..c7f3b71fc45 100644 --- a/doc/src/sgml/ref/values.sgml +++ b/doc/src/sgml/ref/values.sgml @@ -198,13 +198,12 @@ UPDATE employees SET salary = salary * v.increase WHERE employees.depno = v.depno AND employees.sales >= v.target; - Note that an AS clause is required when VALUES - is used in a FROM clause, just as is true for - SELECT. It is not required that the AS clause - specify names for all the columns, but it's good practice to do so. - (The default column names for VALUES are column1, - column2, etc. in PostgreSQL, but - these names might be different in other database systems.) + Note that if VALUES is used in a FROM clause, + it is not necessary to provide an AS clause, but it's good practice + to do so and specify names for each column. (The default column names for + VALUES are column1,column2, + etc. in PostgreSQL, but these names might be different in + other database systems.) -- 2.43.0