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Commit7445f09

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Fix failure of ALTER FOREIGN TABLE SET SCHEMA to move sequences.
Ordinary ALTER TABLE SET SCHEMA will also move any owned sequencesinto the new schema. We failed to do likewise for foreign tables,because AlterTableNamespaceInternal believed that only certainrelkinds could have indexes, owned sequences, or constraints.We could simply add foreign tables to that relkind list, but itseems likely that the same oversight could be made again infuture. Instead let's remove the relkind filter altogether.These functions shouldn't cost much when there are no objectsthat they need to process, and surely this isn't an especiallyperformance-critical case anyway.Per bug #18407 from Vidushi Gupta. Back-patch to all supportedbranches.Discussion:https://postgr.es/m/18407-4fd07373d252c6a0@postgresql.org
1 parent7651fd3 commit7445f09

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3 files changed

+24
-22
lines changed

3 files changed

+24
-22
lines changed

‎src/backend/commands/tablecmds.c

Lines changed: 5 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -16560,16 +16560,11 @@ AlterTableNamespaceInternal(Relation rel, Oid oldNspOid, Oid nspOid,
1656016560
nspOid, false, false, objsMoved);
1656116561

1656216562
/* Fix other dependent stuff */
16563-
if (rel->rd_rel->relkind == RELKIND_RELATION ||
16564-
rel->rd_rel->relkind == RELKIND_MATVIEW ||
16565-
rel->rd_rel->relkind == RELKIND_PARTITIONED_TABLE)
16566-
{
16567-
AlterIndexNamespaces(classRel, rel, oldNspOid, nspOid, objsMoved);
16568-
AlterSeqNamespaces(classRel, rel, oldNspOid, nspOid,
16569-
objsMoved, AccessExclusiveLock);
16570-
AlterConstraintNamespaces(RelationGetRelid(rel), oldNspOid, nspOid,
16571-
false, objsMoved);
16572-
}
16563+
AlterIndexNamespaces(classRel, rel, oldNspOid, nspOid, objsMoved);
16564+
AlterSeqNamespaces(classRel, rel, oldNspOid, nspOid,
16565+
objsMoved, AccessExclusiveLock);
16566+
AlterConstraintNamespaces(RelationGetRelid(rel), oldNspOid, nspOid,
16567+
false, objsMoved);
1657316568

1657416569
table_close(classRel, RowExclusiveLock);
1657516570
}

‎src/test/regress/expected/foreign_data.out

Lines changed: 17 additions & 12 deletions
Original file line numberDiff line numberDiff line change
@@ -892,24 +892,29 @@ ERROR: column "no_column" of relation "ft1" does not exist
892892
ALTER FOREIGN TABLE ft1 DROP COLUMN IF EXISTS no_column;
893893
NOTICE: column "no_column" of relation "ft1" does not exist, skipping
894894
ALTER FOREIGN TABLE ft1 DROP COLUMN c9;
895+
ALTER FOREIGN TABLE ft1 ADD COLUMN c11 serial;
895896
ALTER FOREIGN TABLE ft1 SET SCHEMA foreign_schema;
896897
ALTER FOREIGN TABLE ft1 SET TABLESPACE ts; -- ERROR
897898
ERROR: relation "ft1" does not exist
899+
ALTER SEQUENCE foreign_schema.ft1_c11_seq SET SCHEMA public; -- ERROR
900+
ERROR: cannot move an owned sequence into another schema
901+
DETAIL: Sequence "ft1_c11_seq" is linked to table "ft1".
898902
ALTER FOREIGN TABLE foreign_schema.ft1 RENAME c1 TO foreign_column_1;
899903
ALTER FOREIGN TABLE foreign_schema.ft1 RENAME TO foreign_table_1;
900904
\d foreign_schema.foreign_table_1
901-
Foreign table "foreign_schema.foreign_table_1"
902-
Column | Type | Collation | Nullable | Default | FDW options
903-
------------------+---------+-----------+----------+---------+--------------------------------
904-
foreign_column_1 | integer | | not null | | ("param 1" 'val1')
905-
c2 | text | | | | (param2 'val2', param3 'val3')
906-
c3 | date | | | |
907-
c4 | integer | | | 0 |
908-
c5 | integer | | | |
909-
c6 | integer | | not null | |
910-
c7 | integer | | | | (p1 'v1', p2 'v2')
911-
c8 | text | | | | (p2 'V2')
912-
c10 | integer | | | | (p1 'v1')
905+
Foreign table "foreign_schema.foreign_table_1"
906+
Column | Type | Collation | Nullable | Default | FDW options
907+
------------------+---------+-----------+----------+-------------------------------------------------+--------------------------------
908+
foreign_column_1 | integer | | not null | | ("param 1" 'val1')
909+
c2 | text | | | | (param2 'val2', param3 'val3')
910+
c3 | date | | | |
911+
c4 | integer | | | 0 |
912+
c5 | integer | | | |
913+
c6 | integer | | not null | |
914+
c7 | integer | | | | (p1 'v1', p2 'v2')
915+
c8 | text | | | | (p2 'V2')
916+
c10 | integer | | | | (p1 'v1')
917+
c11 | integer | | not null | nextval('foreign_schema.ft1_c11_seq'::regclass) |
913918
Check constraints:
914919
"ft1_c2_check" CHECK (c2 <> ''::text)
915920
"ft1_c3_check" CHECK (c3 >= '01-01-1994'::date AND c3 <= '01-31-1994'::date)

‎src/test/regress/sql/foreign_data.sql

Lines changed: 2 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -419,8 +419,10 @@ ALTER FOREIGN TABLE ft1 OPTIONS (DROP delimiter, SET quote '~', ADD escape '@');
419419
ALTER FOREIGN TABLE ft1 DROP COLUMN no_column;-- ERROR
420420
ALTER FOREIGN TABLE ft1 DROP COLUMN IF EXISTS no_column;
421421
ALTER FOREIGN TABLE ft1 DROP COLUMN c9;
422+
ALTER FOREIGN TABLE ft1 ADD COLUMN c11serial;
422423
ALTER FOREIGN TABLE ft1SET SCHEMA foreign_schema;
423424
ALTER FOREIGN TABLE ft1SET TABLESPACE ts;-- ERROR
425+
ALTERSEQUENCEforeign_schema.ft1_c11_seqSET SCHEMA public;-- ERROR
424426
ALTER FOREIGN TABLEforeign_schema.ft1 RENAME c1 TO foreign_column_1;
425427
ALTER FOREIGN TABLEforeign_schema.ft1 RENAME TO foreign_table_1;
426428
\dforeign_schema.foreign_table_1

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