> On Sun, Mar 26, 2023 at 07:32:05PM +0800, Julien Rouhaud wrote: > Hi, > > I just have a few minor wording improvements for the various comments / > documentation you quoted.
Talking about documentation I've noticed that the implementation contains few limitations, that are not mentioned in the docs. Examples are WITH queries: WITH x AS (LET public.svar = 100) SELECT * FROM x; ERROR: LET not supported in WITH query and using with set-returning functions (haven't found any related tests). Another small note is about this change in the rowsecurity: /* - * For SELECT, UPDATE and DELETE, add security quals to enforce the USING - * policies. These security quals control access to existing table rows. - * Restrictive policies are combined together using AND, and permissive - * policies are combined together using OR. + * For SELECT, LET, UPDATE and DELETE, add security quals to enforce the + * USING policies. These security quals control access to existing table + * rows. Restrictive policies are combined together using AND, and + * permissive policies are combined together using OR. */ >From this commentary one may think that LET command supports row level security, but I don't see it being implemented. A wrong commentary?