compound_three_primary_keys

2 rows where pk2 = "k" and pk3 = "c"

descending

Link	pk1	pk2	pk3	content
a,k,c	a	k	c	a-k-c
b,k,c	b	k	c	b-k-c

Advanced export

JSON shape: default, array, newline-delimited, object

CREATE TABLE compound_three_primary_keys (
  pk1 varchar(30),
  pk2 varchar(30),
  pk3 varchar(30),
  content text,
  PRIMARY KEY (pk1, pk2, pk3)
);
CREATE INDEX idx_compound_three_primary_keys_content ON compound_three_primary_keys(content);