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|
\set VERBOSITY terse
-- predictability
SET synchronous_commit = on;
DROP TABLE IF EXISTS table_with_pk;
DROP TABLE IF EXISTS table_without_pk;
DROP TABLE IF EXISTS table_with_unique;
CREATE TABLE table_with_pk (
a smallserial,
b smallint,
c int,
d bigint,
e numeric(5,3),
f real not null,
g double precision,
h char(10),
i varchar(30),
j text,
k bit varying(20),
l timestamp,
m date,
n boolean not null,
o json,
p tsvector,
PRIMARY KEY(b, c, d)
);
CREATE TABLE table_without_pk (
a smallserial,
b smallint,
c int,
d bigint,
e numeric(5,3),
f real not null,
g double precision,
h char(10),
i varchar(30),
j text,
k bit varying(20),
l timestamp,
m date,
n boolean not null,
o json,
p tsvector
);
CREATE TABLE table_with_unique (
a smallserial,
b smallint,
c int,
d bigint,
e numeric(5,3) not null,
f real not null,
g double precision not null,
h char(10),
i varchar(30),
j text,
k bit varying(20),
l timestamp,
m date,
n boolean not null,
o json,
p tsvector,
UNIQUE(g, n)
);
-- INSERT
INSERT INTO table_with_pk (b, c, d, e, f, g, h, i, j, k, l, m, n, o, p) VALUES(1, 2, 3, 3.54, 876.563452345, 1.23, 'teste', 'testando', 'um texto longo', B'001110010101010', '2013-11-02 17:30:52', '2013-02-04', true, '{ "a": 123 }', 'Old Old Parr'::tsvector);
INSERT INTO table_without_pk (b, c, d, e, f, g, h, i, j, k, l, m, n, o, p) VALUES(1, 2, 3, 3.54, 876.563452345, 1.23, 'teste', 'testando', 'um texto longo', B'001110010101010', '2013-11-02 17:30:52', '2013-02-04', true, '{ "a": 123 }', 'Old Old Parr'::tsvector);
INSERT INTO table_with_unique (b, c, d, e, f, g, h, i, j, k, l, m, n, o, p) VALUES(1, 2, 3, 3.54, 876.563452345, 1.23, 'teste', 'testando', 'um texto longo', B'001110010101010', '2013-11-02 17:30:52', '2013-02-04', true, '{ "a": 123 }', 'Old Old Parr'::tsvector);
SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'wal2json');
?column?
----------
init
(1 row)
-- UPDATE: REPLICA IDENTITY NOTHING
ALTER TABLE table_with_pk REPLICA IDENTITY NOTHING;
UPDATE table_with_pk SET f = -f WHERE b = 1;
ALTER TABLE table_with_pk REPLICA IDENTITY DEFAULT;
ALTER TABLE table_without_pk REPLICA IDENTITY NOTHING;
UPDATE table_without_pk SET f = -f WHERE b = 1;
ALTER TABLE table_without_pk REPLICA IDENTITY DEFAULT;
ALTER TABLE table_with_unique REPLICA IDENTITY NOTHING;
UPDATE table_with_unique SET f = -f WHERE b = 1;
ALTER TABLE table_with_unique REPLICA IDENTITY DEFAULT;
SELECT data FROM pg_logical_slot_peek_changes('regression_slot', NULL, NULL, 'format-version', '1', 'pretty-print', '1', 'include-typmod', '0');
WARNING: table "table_with_pk" without primary key or replica identity is nothing
WARNING: table "table_without_pk" without primary key or replica identity is nothing
WARNING: table "table_with_unique" without primary key or replica identity is nothing
data
---------------------
{ +
"change": [+
] +
}
{ +
"change": [+
] +
}
{ +
"change": [+
] +
}
{ +
"change": [+
] +
}
{ +
"change": [+
] +
}
{ +
"change": [+
] +
}
{ +
"change": [+
] +
}
{ +
"change": [+
] +
}
{ +
"change": [+
] +
}
(9 rows)
SELECT data FROM pg_logical_slot_peek_changes('regression_slot', NULL, NULL, 'format-version', '2');
WARNING: no tuple identifier for UPDATE in table "public"."table_with_pk"
WARNING: no tuple identifier for UPDATE in table "public"."table_without_pk"
WARNING: no tuple identifier for UPDATE in table "public"."table_with_unique"
data
----------------
{"action":"B"}
{"action":"C"}
{"action":"B"}
{"action":"C"}
{"action":"B"}
{"action":"C"}
{"action":"B"}
{"action":"C"}
{"action":"B"}
{"action":"C"}
{"action":"B"}
{"action":"C"}
{"action":"B"}
{"action":"C"}
{"action":"B"}
{"action":"C"}
{"action":"B"}
{"action":"C"}
(18 rows)
SELECT 'stop' FROM pg_drop_replication_slot('regression_slot');
?column?
----------
stop
(1 row)
|
