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authorMichael Paquier2020-06-05 01:26:02 +0000
committerMichael Paquier2020-06-05 01:26:02 +0000
commit1127f0e392c757fc4fbbeffd7d0202bb02670e9c (patch)
tree42d1c09c63a244deb4ba5dc7067ec2c49b8c00dd
parenta9632830bb05dc98ae24017cafc652e4a66d44a8 (diff)
Preserve pg_index.indisreplident across REINDEX CONCURRENTLY
If the flag value is lost, logical decoding would work the same way as REPLICA IDENTITY NOTHING, meaning that no old tuple values would be included in the changes anymore produced by logical decoding. Author: Michael Paquier Reviewed-by: Euler Taveira Discussion: https://postgr.es/m/20200603065340.GK89559@paquier.xyz Backpatch-through: 12
-rw-r--r--src/backend/catalog/index.c4
-rw-r--r--src/test/regress/expected/create_index.out21
-rw-r--r--src/test/regress/sql/create_index.sql11
3 files changed, 36 insertions, 0 deletions
diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index 7cfbdd57db8..cdc01c49c9f 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1538,6 +1538,10 @@ index_concurrently_swap(Oid newIndexId, Oid oldIndexId, const char *oldName)
newIndexForm->indimmediate = oldIndexForm->indimmediate;
oldIndexForm->indimmediate = true;
+ /* Preserve indisreplident in the new index */
+ newIndexForm->indisreplident = oldIndexForm->indisreplident;
+ oldIndexForm->indisreplident = false;
+
/* Preserve indisclustered in the new index */
newIndexForm->indisclustered = oldIndexForm->indisclustered;
diff --git a/src/test/regress/expected/create_index.out b/src/test/regress/expected/create_index.out
index ae95bb38a64..e3e6634d7e1 100644
--- a/src/test/regress/expected/create_index.out
+++ b/src/test/regress/expected/create_index.out
@@ -2141,6 +2141,27 @@ SELECT indexrelid::regclass, indisclustered FROM pg_index
(1 row)
DROP TABLE concur_clustered;
+-- Check that indisreplident updates are preserved.
+CREATE TABLE concur_replident(i int NOT NULL);
+CREATE UNIQUE INDEX concur_replident_i_idx ON concur_replident(i);
+ALTER TABLE concur_replident REPLICA IDENTITY
+ USING INDEX concur_replident_i_idx;
+SELECT indexrelid::regclass, indisreplident FROM pg_index
+ WHERE indrelid = 'concur_replident'::regclass;
+ indexrelid | indisreplident
+------------------------+----------------
+ concur_replident_i_idx | t
+(1 row)
+
+REINDEX TABLE CONCURRENTLY concur_replident;
+SELECT indexrelid::regclass, indisreplident FROM pg_index
+ WHERE indrelid = 'concur_replident'::regclass;
+ indexrelid | indisreplident
+------------------------+----------------
+ concur_replident_i_idx | t
+(1 row)
+
+DROP TABLE concur_replident;
-- Partitions
-- Create some partitioned tables
CREATE TABLE concur_reindex_part (c1 int, c2 int) PARTITION BY RANGE (c1);
diff --git a/src/test/regress/sql/create_index.sql b/src/test/regress/sql/create_index.sql
index c3246cb296f..f3667bacdc9 100644
--- a/src/test/regress/sql/create_index.sql
+++ b/src/test/regress/sql/create_index.sql
@@ -866,6 +866,17 @@ REINDEX TABLE CONCURRENTLY concur_clustered;
SELECT indexrelid::regclass, indisclustered FROM pg_index
WHERE indrelid = 'concur_clustered'::regclass;
DROP TABLE concur_clustered;
+-- Check that indisreplident updates are preserved.
+CREATE TABLE concur_replident(i int NOT NULL);
+CREATE UNIQUE INDEX concur_replident_i_idx ON concur_replident(i);
+ALTER TABLE concur_replident REPLICA IDENTITY
+ USING INDEX concur_replident_i_idx;
+SELECT indexrelid::regclass, indisreplident FROM pg_index
+ WHERE indrelid = 'concur_replident'::regclass;
+REINDEX TABLE CONCURRENTLY concur_replident;
+SELECT indexrelid::regclass, indisreplident FROM pg_index
+ WHERE indrelid = 'concur_replident'::regclass;
+DROP TABLE concur_replident;
-- Partitions
-- Create some partitioned tables