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https://github.com/postgres/postgres.git
synced 2025-06-11 20:28:21 +03:00
Handle heap rewrites even better in logical decoding
Logical decoding should not publish anything about tables created as
part of a heap rewrite during DDL. Those tables don't exist externally,
so consumers of logical decoding cannot do anything sensible with that
information. In ab28feae2b, we worked
around this for built-in logical replication, but that was hack.
This is a more proper fix: We mark such transient heaps using the new
field pg_class.relwrite, linking to the original relation OID. By
default, we ignore them in logical decoding before they get to the
output plugin. Optionally, a plugin can register their interest in
getting such changes, if they handle DDL specially, in which case the
new field will help them get information about the actual table.
Reviewed-by: Craig Ringer <craig@2ndquadrant.com>
This commit is contained in:
Peter Eisentraut
@ -10,7 +10,7 @@ step s1_insert_tbl1: INSERT INTO tbl1 (val1, val2) VALUES (1, 1);
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step s2_alter_tbl2_float: ALTER TABLE tbl2 ALTER COLUMN val2 TYPE float;
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step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
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step s1_commit: COMMIT;
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -32,16 +32,13 @@ step s2_alter_tbl1_float: ALTER TABLE tbl1 ALTER COLUMN val2 TYPE float; <waitin
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step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
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step s1_commit: COMMIT;
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step s2_alter_tbl1_float: <... completed>
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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table public.tbl1: INSERT: val1[integer]:1 val2[integer]:1
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table public.tbl2: INSERT: val1[integer]:1 val2[integer]:1
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COMMIT
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BEGIN
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table public.pg_temp: INSERT: val1[integer]:1 val2[double precision]:1
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COMMIT
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?column?
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stop
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@ -56,7 +53,7 @@ step s1_insert_tbl1: INSERT INTO tbl1 (val1, val2) VALUES (1, 1);
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step s2_alter_tbl2_char: ALTER TABLE tbl2 ALTER COLUMN val2 TYPE character varying;
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step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
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step s1_commit: COMMIT;
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -78,16 +75,13 @@ step s2_alter_tbl1_char: ALTER TABLE tbl1 ALTER COLUMN val2 TYPE character varyi
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step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
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step s1_commit: COMMIT;
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step s2_alter_tbl1_char: <... completed>
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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table public.tbl1: INSERT: val1[integer]:1 val2[integer]:1
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table public.tbl2: INSERT: val1[integer]:1 val2[integer]:1
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COMMIT
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BEGIN
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table public.pg_temp: INSERT: val1[integer]:1 val2[character varying]:'1'
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COMMIT
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?column?
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stop
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@ -103,16 +97,13 @@ step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
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step s2_alter_tbl1_float: ALTER TABLE tbl1 ALTER COLUMN val2 TYPE float; <waiting ...>
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step s1_commit: COMMIT;
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step s2_alter_tbl1_float: <... completed>
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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table public.tbl1: INSERT: val1[integer]:1 val2[integer]:1
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table public.tbl2: INSERT: val1[integer]:1 val2[integer]:1
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COMMIT
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BEGIN
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table public.pg_temp: INSERT: val1[integer]:1 val2[double precision]:1
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COMMIT
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?column?
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stop
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@ -128,16 +119,13 @@ step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
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step s2_alter_tbl1_char: ALTER TABLE tbl1 ALTER COLUMN val2 TYPE character varying; <waiting ...>
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step s1_commit: COMMIT;
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step s2_alter_tbl1_char: <... completed>
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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table public.tbl1: INSERT: val1[integer]:1 val2[integer]:1
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table public.tbl2: INSERT: val1[integer]:1 val2[integer]:1
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COMMIT
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BEGIN
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table public.pg_temp: INSERT: val1[integer]:1 val2[character varying]:'1'
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COMMIT
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?column?
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stop
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@ -154,16 +142,13 @@ step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
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step s2_alter_tbl1_float: ALTER TABLE tbl1 ALTER COLUMN val2 TYPE float; <waiting ...>
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step s1_commit: COMMIT;
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step s2_alter_tbl1_float: <... completed>
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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table public.tbl1: INSERT: val1[integer]:1 val2[integer]:1
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table public.tbl2: INSERT: val1[integer]:1 val2[double precision]:1
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COMMIT
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BEGIN
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table public.pg_temp: INSERT: val1[integer]:1 val2[double precision]:1
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COMMIT
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?column?
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stop
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@ -180,16 +165,13 @@ step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
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step s2_alter_tbl1_char: ALTER TABLE tbl1 ALTER COLUMN val2 TYPE character varying; <waiting ...>
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step s1_commit: COMMIT;
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step s2_alter_tbl1_char: <... completed>
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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table public.tbl1: INSERT: val1[integer]:1 val2[integer]:1
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table public.tbl2: INSERT: val1[integer]:1 val2[character varying]:'1'
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COMMIT
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BEGIN
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table public.pg_temp: INSERT: val1[integer]:1 val2[character varying]:'1'
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COMMIT
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?column?
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stop
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@ -205,7 +187,7 @@ step s1_insert_tbl1: INSERT INTO tbl1 (val1, val2) VALUES (1, 1);
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step s2_alter_tbl2_text: ALTER TABLE tbl2 ALTER COLUMN val2 TYPE text;
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step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
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step s1_commit: COMMIT;
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -229,16 +211,13 @@ step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
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step s2_alter_tbl1_char: ALTER TABLE tbl1 ALTER COLUMN val2 TYPE character varying; <waiting ...>
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step s1_commit: COMMIT;
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step s2_alter_tbl1_char: <... completed>
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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table public.tbl1: INSERT: val1[integer]:1 val2[integer]:1
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table public.tbl2: INSERT: val1[integer]:1 val2[text]:'1'
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COMMIT
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BEGIN
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table public.pg_temp: INSERT: val1[integer]:1 val2[character varying]:'1'
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COMMIT
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?column?
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stop
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@ -254,7 +233,7 @@ step s2_alter_tbl2_boolean: ALTER TABLE tbl2 ALTER COLUMN val2 TYPE boolean;
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ERROR: column "val2" cannot be cast automatically to type boolean
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step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
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step s1_commit: COMMIT;
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -279,7 +258,7 @@ step s2_alter_tbl1_boolean: ALTER TABLE tbl1 ALTER COLUMN val2 TYPE boolean; <wa
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step s1_commit: COMMIT;
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step s2_alter_tbl1_boolean: <... completed>
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error in steps s1_commit s2_alter_tbl1_boolean: ERROR: column "val2" cannot be cast automatically to type boolean
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -300,7 +279,7 @@ step s1_insert_tbl1: INSERT INTO tbl1 (val1, val2) VALUES (1, 1);
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step s2_alter_tbl2_add_int: ALTER TABLE tbl2 ADD COLUMN val3 INTEGER;
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step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
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step s1_commit: COMMIT;
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -324,7 +303,7 @@ step s1_begin: BEGIN;
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step s2_alter_tbl2_add_int: ALTER TABLE tbl2 ADD COLUMN val3 INTEGER;
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step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
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step s1_commit: COMMIT;
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -348,7 +327,7 @@ step s1_insert_tbl1: INSERT INTO tbl1 (val1, val2) VALUES (1, 1);
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step s2_alter_tbl2_add_float: ALTER TABLE tbl2 ADD COLUMN val3 FLOAT;
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step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
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step s1_commit: COMMIT;
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -372,7 +351,7 @@ step s1_begin: BEGIN;
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step s2_alter_tbl2_add_float: ALTER TABLE tbl2 ADD COLUMN val3 FLOAT;
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step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
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step s1_commit: COMMIT;
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -396,7 +375,7 @@ step s1_insert_tbl1: INSERT INTO tbl1 (val1, val2) VALUES (1, 1);
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step s2_alter_tbl2_add_char: ALTER TABLE tbl2 ADD COLUMN val3 character varying;
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step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
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step s1_commit: COMMIT;
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -420,7 +399,7 @@ step s1_begin: BEGIN;
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step s2_alter_tbl2_add_char: ALTER TABLE tbl2 ADD COLUMN val3 character varying;
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step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
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step s1_commit: COMMIT;
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -445,7 +424,7 @@ step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
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step s2_alter_tbl2_drop_3rd_col: ALTER TABLE tbl2 DROP COLUMN val3; <waiting ...>
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step s1_commit: COMMIT;
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step s2_alter_tbl2_drop_3rd_col: <... completed>
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -468,7 +447,7 @@ step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
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step s1_commit: COMMIT;
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step s2_alter_tbl2_drop_3rd_col: <... completed>
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step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -493,7 +472,7 @@ step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
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step s2_alter_tbl2_drop_3rd_col: ALTER TABLE tbl2 DROP COLUMN val3; <waiting ...>
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step s1_commit: COMMIT;
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step s2_alter_tbl2_drop_3rd_col: <... completed>
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -506,7 +485,7 @@ step s2_alter_tbl2_3rd_char: ALTER TABLE tbl2 ALTER COLUMN val3 TYPE character v
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step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
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step s1_commit: COMMIT;
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step s2_alter_tbl2_3rd_char: <... completed>
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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@ -515,14 +494,9 @@ table public.tbl2: INSERT: val1[integer]:1 val2[integer]:1 val3[text]:'1'
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COMMIT
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step s2_alter_tbl2_3rd_int: ALTER TABLE tbl2 ALTER COLUMN val3 TYPE int USING val3::integer;
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step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
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step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
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data
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BEGIN
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table public.pg_temp: INSERT: val1[integer]:1 val2[integer]:1 val3[integer]:null
|
||||
table public.pg_temp: INSERT: val1[integer]:1 val2[integer]:1 val3[integer]:1
|
||||
table public.pg_temp: INSERT: val1[integer]:1 val2[integer]:1 val3[integer]:1
|
||||
COMMIT
|
||||
BEGIN
|
||||
table public.tbl2: INSERT: val1[integer]:1 val2[integer]:1 val3[integer]:1
|
||||
COMMIT
|
||||
@ -544,7 +518,7 @@ step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
|
||||
step s1_commit: COMMIT;
|
||||
step s2_alter_tbl2_3rd_text: <... completed>
|
||||
step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
|
||||
step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
||||
step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
||||
data
|
||||
|
||||
BEGIN
|
||||
@ -573,7 +547,7 @@ step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
|
||||
step s1_commit: COMMIT;
|
||||
step s2_alter_tbl2_3rd_char: <... completed>
|
||||
step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
|
||||
step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
||||
step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
||||
data
|
||||
|
||||
BEGIN
|
||||
@ -601,7 +575,7 @@ step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
|
||||
step s1_commit: COMMIT;
|
||||
step s2_alter_tbl2_drop_3rd_col: ALTER TABLE tbl2 DROP COLUMN val3;
|
||||
step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
|
||||
step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
||||
step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
||||
data
|
||||
|
||||
BEGIN
|
||||
@ -628,7 +602,7 @@ step s1_insert_tbl2_3col: INSERT INTO tbl2 (val1, val2, val3) VALUES (1, 1, 1);
|
||||
step s1_commit: COMMIT;
|
||||
step s2_alter_tbl2_drop_3rd_col: ALTER TABLE tbl2 DROP COLUMN val3;
|
||||
step s1_insert_tbl2: INSERT INTO tbl2 (val1, val2) VALUES (1, 1);
|
||||
step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
||||
step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
||||
data
|
||||
|
||||
BEGIN
|
||||
@ -653,7 +627,7 @@ step s1_insert_tbl1: INSERT INTO tbl1 (val1, val2) VALUES (1, 1);
|
||||
step s2_alter_tbl2_drop_3rd_col: ALTER TABLE tbl2 DROP COLUMN val3;
|
||||
step s1_insert_tbl1: INSERT INTO tbl1 (val1, val2) VALUES (1, 1);
|
||||
step s1_commit: COMMIT;
|
||||
step s2_get_changes: SELECT regexp_replace(data, 'temp_\d+', 'temp') AS data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
||||
step s2_get_changes: SELECT data FROM pg_logical_slot_get_changes('isolation_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
||||
data
|
||||
|
||||
BEGIN
|
||||
|
||||
@ -117,11 +117,11 @@ SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'inc
|
||||
(22 rows)
|
||||
|
||||
ALTER TABLE replication_example ALTER COLUMN somenum TYPE int4 USING (somenum::int4);
|
||||
-- throw away changes, they contain oids
|
||||
-- check that this doesn't produce any changes from the heap rewrite
|
||||
SELECT count(data) FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
||||
count
|
||||
-------
|
||||
12
|
||||
0
|
||||
(1 row)
|
||||
|
||||
INSERT INTO replication_example(somedata, somenum) VALUES (5, 1);
|
||||
@ -192,16 +192,20 @@ SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'inc
|
||||
COMMIT
|
||||
(33 rows)
|
||||
|
||||
-- hide changes bc of oid visible in full table rewrites
|
||||
CREATE TABLE tr_unique(id2 serial unique NOT NULL, data int);
|
||||
INSERT INTO tr_unique(data) VALUES(10);
|
||||
ALTER TABLE tr_unique RENAME TO tr_pkey;
|
||||
ALTER TABLE tr_pkey ADD COLUMN id serial primary key;
|
||||
SELECT count(data) FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1');
|
||||
count
|
||||
-------
|
||||
6
|
||||
(1 row)
|
||||
SELECT data FROM pg_logical_slot_get_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'include-rewrites', '1');
|
||||
data
|
||||
-----------------------------------------------------------------------------
|
||||
BEGIN
|
||||
table public.tr_unique: INSERT: id2[integer]:1 data[integer]:10
|
||||
COMMIT
|
||||
BEGIN
|
||||
table public.tr_pkey: INSERT: id2[integer]:1 data[integer]:10 id[integer]:1
|
||||
COMMIT
|
||||
(6 rows)
|
||||
|
||||
INSERT INTO tr_pkey(data) VALUES(1);
|
||||
--show deletion with primary key
|
||||
|
||||
Reference in New Issue
Block a user