add batch remove batch split batch comment selection show hidden batches hide batch highlight batch
db<>fiddle
donate feedback about
By using db<>fiddle, you agree to license everything you submit by Creative Commons CC0.
Help with an interesting Postgres question: Why isn't an Index Only Scan used on a partition accessed via the parent table?.
CREATE TABLE
INSERT 0 4
first second data
1 2 test
1 3 testing
1 2 testing
2 2 testing
SELECT 4
CREATE TABLE
ERROR:  duplicate key value violates unique constraint "test1_pkey"
DETAIL:  Key (first, second)=(1, 2) already exists.
CREATE TABLE
INSERT 0 4
id first second data
1 1 2 test
2 1 3 testing
3 1 2 testing
4 2 2 testing
SELECT 4