I'm trying to insert data to a table from another table and the tables have only one column in common. The problem is, that the TABLE1 has columns that won't accept null values so I can't leave them empty and I can't get them from the TABLE2.
I have TABLE1:
id, col_1 (not null), col_2(not null), col_3 (not null)
id, col_a, col_b, col_c
so how could I insert id from TABLE2 to TABLE1 and fill the col_1-3 with hard coded strings like "data1", "data2", "data3"?
INSERT INTO TABLE1 (id) SELECT id FROM TABLE2 WHERE col_a = "something";
will result in:
ERROR: null value in column "col_1" violates not-null constraint