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\set VERBOSITY terse
-- predictability
SET synchronous_commit = on;
DROP TABLE IF EXISTS table_with_unique;
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_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', false, '{ "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(4, 5, 6, 3.54, 876.563452345, 4.56, '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)
-- DELETE: REPLICA IDENTITY INDEX
ALTER TABLE table_with_unique REPLICA IDENTITY USING INDEX table_with_unique_g_n_key;
DELETE FROM table_with_unique WHERE b = 1;
DELETE FROM table_with_unique WHERE n = true;
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');
data
-----------------------------------------------------------------
{ +
"change": [ +
] +
}
{ +
"change": [ +
{ +
"kind": "delete", +
"schema": "public", +
"table": "table_with_unique", +
"oldkeys": { +
"keynames": ["g", "n"], +
"keytypes": ["float8", "bool"],+
"keyvalues": [1.23, false] +
} +
} +
] +
}
{ +
"change": [ +
{ +
"kind": "delete", +
"schema": "public", +
"table": "table_with_unique", +
"oldkeys": { +
"keynames": ["g", "n"], +
"keytypes": ["float8", "bool"],+
"keyvalues": [4.56, true] +
} +
} +
] +
}
{ +
"change": [ +
] +
}
(4 rows)
SELECT data FROM pg_logical_slot_peek_changes('regression_slot', NULL, NULL, 'format-version', '2');
data
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------
{"action":"B"}
{"action":"C"}
{"action":"B"}
{"action":"D","schema":"public","table":"table_with_unique","identity":[{"name":"g","type":"double precision","value":1.23},{"name":"n","type":"boolean","value":false}]}
{"action":"C"}
{"action":"B"}
{"action":"D","schema":"public","table":"table_with_unique","identity":[{"name":"g","type":"double precision","value":4.56},{"name":"n","type":"boolean","value":true}]}
{"action":"C"}
{"action":"B"}
{"action":"C"}
(10 rows)
SELECT 'stop' FROM pg_drop_replication_slot('regression_slot');
?column?
----------
stop
(1 row)
|
