SQL

postgresql insert select

insert into items_ver(item_id, item_group, name)
select * from items where item_id=2;

postgresql sql insert into select from values

INSERT INTO target(c1, c2)
SELECT source.c1, source.c2
FROM (VALUES
          ('a', 1),
          ('b', 2)
     ) AS source(c1, c2);

postgre insert select

insert into TABLENAMEA (A,B,C,D) 
select A,B,C,D from TABLENAMEB