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authorAndres Freund2016-03-03 07:42:21 +0000
committerAndres Freund2016-03-03 07:42:21 +0000
commit7c17aac69dcae610b08c5965161151cd282f16bc (patch)
tree7a2f467bcac44f83db1299394b0a03ef284e0167 /contrib
parenta9d199f6d3b998929cdb8e8aa61e5cd8db9b220f (diff)
logical decoding: fix decoding of a commit's commit time.
When adding replication origins in 5aa235042, I somehow managed to set the timestamp of decoded transactions to InvalidXLogRecptr when decoding one made without a replication origin. Fix that, and the wrong type of the new commit_time variable. This didn't trigger a regression test failure because we explicitly don't show commit timestamps in the regression tests, as they obviously are variable. Add a test that checks that a decoded commit's timestamp is within minutes of NOW() from before the commit. Reported-By: Weiping Qu Diagnosed-By: Artur Zakirov Discussion: 56D4197E.9050706@informatik.uni-kl.de, 56D42918.1010108@postgrespro.ru Backpatch: 9.5, where 5aa235042 originates.
Diffstat (limited to 'contrib')
-rw-r--r--contrib/test_decoding/Makefile2
-rw-r--r--contrib/test_decoding/expected/time.out40
-rw-r--r--contrib/test_decoding/sql/time.sql22
3 files changed, 63 insertions, 1 deletions
diff --git a/contrib/test_decoding/Makefile b/contrib/test_decoding/Makefile
index a362e696916..78816bfe2f8 100644
--- a/contrib/test_decoding/Makefile
+++ b/contrib/test_decoding/Makefile
@@ -38,7 +38,7 @@ submake-test_decoding:
$(MAKE) -C $(top_builddir)/contrib/test_decoding
REGRESSCHECKS=ddl rewrite toast permissions decoding_in_xact decoding_into_rel \
- binary prepared replorigin
+ binary prepared replorigin time
regresscheck: | submake-regress submake-test_decoding temp-install
$(MKDIR_P) regression_output
diff --git a/contrib/test_decoding/expected/time.out b/contrib/test_decoding/expected/time.out
new file mode 100644
index 00000000000..3b06849d697
--- /dev/null
+++ b/contrib/test_decoding/expected/time.out
@@ -0,0 +1,40 @@
+SET synchronous_commit = on;
+CREATE TABLE test_time(data text);
+-- remember the current time
+SELECT set_config('test.time_before', NOW()::text, false) IS NOT NULL;
+ ?column?
+----------
+ t
+(1 row)
+
+SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
+ ?column?
+----------
+ init
+(1 row)
+
+-- a single transaction, to get the commit time
+INSERT INTO test_time(data) VALUES ('');
+-- parse the commit time from the changeset
+SELECT set_config('test.time_after', regexp_replace(data, '^COMMIT \(at (.*)\)$', '\1'), false) IS NOT NULL
+FROM pg_logical_slot_peek_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'include-timestamp', '1')
+WHERE data ~ 'COMMIT' LIMIT 1;
+ ?column?
+----------
+ t
+(1 row)
+
+-- ensure commit time is sane in relation to the previous time
+SELECT (time_after - time_before) <= '10 minutes'::interval, time_after >= time_before
+FROM (SELECT current_setting('test.time_after')::timestamptz AS time_after, (SELECT current_setting('test.time_before')::timestamptz) AS time_before) AS d;
+ ?column? | ?column?
+----------+----------
+ t | t
+(1 row)
+
+SELECT pg_drop_replication_slot('regression_slot');
+ pg_drop_replication_slot
+--------------------------
+
+(1 row)
+
diff --git a/contrib/test_decoding/sql/time.sql b/contrib/test_decoding/sql/time.sql
new file mode 100644
index 00000000000..a47c9731f34
--- /dev/null
+++ b/contrib/test_decoding/sql/time.sql
@@ -0,0 +1,22 @@
+SET synchronous_commit = on;
+
+CREATE TABLE test_time(data text);
+
+-- remember the current time
+SELECT set_config('test.time_before', NOW()::text, false) IS NOT NULL;
+
+SELECT 'init' FROM pg_create_logical_replication_slot('regression_slot', 'test_decoding');
+
+-- a single transaction, to get the commit time
+INSERT INTO test_time(data) VALUES ('');
+
+-- parse the commit time from the changeset
+SELECT set_config('test.time_after', regexp_replace(data, '^COMMIT \(at (.*)\)$', '\1'), false) IS NOT NULL
+FROM pg_logical_slot_peek_changes('regression_slot', NULL, NULL, 'include-xids', '0', 'skip-empty-xacts', '1', 'include-timestamp', '1')
+WHERE data ~ 'COMMIT' LIMIT 1;
+
+-- ensure commit time is sane in relation to the previous time
+SELECT (time_after - time_before) <= '10 minutes'::interval, time_after >= time_before
+FROM (SELECT current_setting('test.time_after')::timestamptz AS time_after, (SELECT current_setting('test.time_before')::timestamptz) AS time_before) AS d;
+
+SELECT pg_drop_replication_slot('regression_slot');