Em qui., 21 de ago. de 2025 às 12:17, Tom Lane <t...@sss.pgh.pa.us> escreveu:
> Ranier Vilela <ranier...@gmail.com> writes: > > create table inserttest (col1 serial PRIMARY KEY, col2 int4 NOT NULL, > col3 > > text NOT NULL, col4 text NULL); > > insert into inserttest select 0 AS col2, NULL AS col3, NULL AS col4; > > ERROR: null value in column "col2" of relation "inserttest" violates > > not-null constraint > > DETAIL: Failing row contains (0, null, null, null). > > You are misunderstanding the effects of that INSERT. The AS labels > have zero to do with the semantics, so you are inserting 0 to col1, > null to col2 & col3, and by default null to col4. > Thanks for the clarification Tom. best regards, Ranier Vilela