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\set VERBOSITY terse
-- predictability
SET synchronous_commit = on;
SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'wal2json');
?column?
----------
init
(1 row)
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'format-version', '1', 'nosuchopt', '42');
ERROR: option "nosuchopt" = "42" is unknown
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'format-version', '1', 'include-unchanged-toast', '1');
ERROR: parameter "include-unchanged-toast" was deprecated
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'filter-origins', '16, 27, 123');
data
------
(0 rows)
-- don't include not-null constraint by default
CREATE TABLE table_optional (
a smallserial,
b integer,
c boolean not null,
PRIMARY KEY(a)
);
INSERT INTO table_optional (b, c) VALUES(NULL, TRUE);
UPDATE table_optional SET b = 123 WHERE a = 1;
DELETE FROM table_optional WHERE a = 1;
DROP TABLE table_optional;
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'format-version', '1', 'include-xids', '0', 'include-not-null', '1');
data
--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
{"change":[]}
{"change":[{"kind":"insert","schema":"public","table":"table_optional","columnnames":["a","b","c"],"columntypes":["smallint","integer","boolean"],"columnoptionals":[false,true,false],"columnvalues":[1,null,true]}]}
{"change":[{"kind":"update","schema":"public","table":"table_optional","columnnames":["a","b","c"],"columntypes":["smallint","integer","boolean"],"columnoptionals":[false,true,false],"columnvalues":[1,123,true],"oldkeys":{"keynames":["a"],"keytypes":["smallint"],"keyvalues":[1]}}]}
{"change":[{"kind":"delete","schema":"public","table":"table_optional","oldkeys":{"keynames":["a"],"keytypes":["smallint"],"keyvalues":[1]}}]}
{"change":[]}
(5 rows)
-- By default don't write in chunks
CREATE TABLE x ();
DROP TABLE x;
SELECT data FROM pg_logical_slot_peek_changes('regression_slot', NULL, NULL, 'format-version', '1', 'include-xids', '0');
data
---------------
{"change":[]}
{"change":[]}
(2 rows)
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'format-version', '1', 'include-xids', '0', 'write-in-chunks', '1');
data
-------------
{"change":[
]}
{"change":[
]}
(4 rows)
-- By default don't write xids
CREATE TABLE gimmexid (id integer PRIMARY KEY);
INSERT INTO gimmexid values (1);
DROP TABLE gimmexid;
SELECT max(((data::json) -> 'xid')::text::int) < txid_current() FROM pg_logical_slot_peek_changes('regression_slot', NULL, NULL, 'include-xids', '1');
?column?
----------
t
(1 row)
SELECT max(((data::json) -> 'xid')::text::int) + 10 > txid_current() FROM pg_logical_slot_peek_changes('regression_slot', NULL, NULL, 'include-xids', '1');
?column?
----------
t
(1 row)
SELECT data FROM pg_logical_slot_peek_changes('regression_slot', NULL, NULL) where ((data::json) -> 'xid') IS NOT NULL;
data
------
(0 rows)
SELECT 'stop' FROM pg_drop_replication_slot('regression_slot');
?column?
----------
stop
(1 row)
|
