diff --git a/doc/src/sgml/ref/alter_table.sgml b/doc/src/sgml/ref/alter_table.sgml
index c5a14674804..36770c012a6 100644
--- a/doc/src/sgml/ref/alter_table.sgml
+++ b/doc/src/sgml/ref/alter_table.sgml
@@ -797,6 +797,10 @@ WITH ( MODULUS numeric_literal, REM
(for identity or serial columns). However, it is also possible to
change the persistence of such sequences separately.
+
+
+ This form is not supported for partitioned tables.
+
diff --git a/doc/src/sgml/ref/create_table.sgml b/doc/src/sgml/ref/create_table.sgml
index c1855b8d827..83859bac76f 100644
--- a/doc/src/sgml/ref/create_table.sgml
+++ b/doc/src/sgml/ref/create_table.sgml
@@ -220,6 +220,10 @@ WITH ( MODULUS numeric_literal, REM
If this is specified, any sequences created together with the unlogged
table (for identity or serial columns) are also created as unlogged.
+
+
+ This form is not supported for partitioned tables.
+
diff --git a/src/backend/commands/tablecmds.c b/src/backend/commands/tablecmds.c
index 96373323b8d..16c86ffcc0f 100644
--- a/src/backend/commands/tablecmds.c
+++ b/src/backend/commands/tablecmds.c
@@ -734,6 +734,12 @@ DefineRelation(CreateStmt *stmt, char relkind, Oid ownerId,
else
partitioned = false;
+ if (relkind == RELKIND_PARTITIONED_TABLE &&
+ stmt->relation->relpersistence == RELPERSISTENCE_UNLOGGED)
+ ereport(ERROR,
+ (errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
+ errmsg("partitioned tables cannot be unlogged")));
+
/*
* Look up the namespace in which we are supposed to create the relation,
* check we have permission to create there, lock it against concurrent
@@ -4993,8 +4999,7 @@ ATPrepCmd(List **wqueue, Relation rel, AlterTableCmd *cmd,
break;
case AT_SetLogged: /* SET LOGGED */
case AT_SetUnLogged: /* SET UNLOGGED */
- ATSimplePermissions(cmd->subtype, rel,
- ATT_TABLE | ATT_PARTITIONED_TABLE | ATT_SEQUENCE);
+ ATSimplePermissions(cmd->subtype, rel, ATT_TABLE | ATT_SEQUENCE);
if (tab->chgPersistence)
ereport(ERROR,
(errcode(ERRCODE_FEATURE_NOT_SUPPORTED),
diff --git a/src/bin/pg_dump/pg_dump.c b/src/bin/pg_dump/pg_dump.c
index 4dfb7d1abe4..1b47c388ced 100644
--- a/src/bin/pg_dump/pg_dump.c
+++ b/src/bin/pg_dump/pg_dump.c
@@ -15915,8 +15915,13 @@ dumpTableSchema(Archive *fout, const TableInfo *tbinfo)
binary_upgrade_set_pg_class_oids(fout, q,
tbinfo->dobj.catId.oid);
+ /*
+ * PostgreSQL 18 has disabled UNLOGGED for partitioned tables, so
+ * ignore it when dumping if it was set in this case.
+ */
appendPQExpBuffer(q, "CREATE %s%s %s",
- tbinfo->relpersistence == RELPERSISTENCE_UNLOGGED ?
+ (tbinfo->relpersistence == RELPERSISTENCE_UNLOGGED &&
+ tbinfo->relkind != RELKIND_PARTITIONED_TABLE) ?
"UNLOGGED " : "",
reltypename,
qualrelname);
diff --git a/src/bin/pgbench/pgbench.c b/src/bin/pgbench/pgbench.c
index 61618f2e188..e658d060add 100644
--- a/src/bin/pgbench/pgbench.c
+++ b/src/bin/pgbench/pgbench.c
@@ -4865,7 +4865,7 @@ initCreateTables(PGconn *con)
/* Construct new create table statement. */
printfPQExpBuffer(&query, "create%s table %s(%s)",
- unlogged_tables ? " unlogged" : "",
+ (unlogged_tables && partition_method == PART_NONE) ? " unlogged" : "",
ddl->table,
(scale >= SCALE_32BIT_THRESHOLD) ? ddl->bigcols : ddl->smcols);
diff --git a/src/test/regress/expected/create_table.out b/src/test/regress/expected/create_table.out
index 284a7fb85c8..c45e02d42f9 100644
--- a/src/test/regress/expected/create_table.out
+++ b/src/test/regress/expected/create_table.out
@@ -50,6 +50,16 @@ ERROR: cannot create temporary relation in non-temporary schema
LINE 1: CREATE TEMP TABLE public.temp_to_perm (a int primary key);
^
DROP TABLE unlogged1, public.unlogged2;
+CREATE UNLOGGED TABLE unlogged1 (a int) PARTITION BY RANGE (a); -- fail
+ERROR: partitioned tables cannot be unlogged
+CREATE TABLE unlogged1 (a int) PARTITION BY RANGE (a); -- ok
+ALTER TABLE unlogged1 SET LOGGED; -- fails
+ERROR: ALTER action SET LOGGED cannot be performed on relation "unlogged1"
+DETAIL: This operation is not supported for partitioned tables.
+ALTER TABLE unlogged1 SET UNLOGGED; -- fails
+ERROR: ALTER action SET UNLOGGED cannot be performed on relation "unlogged1"
+DETAIL: This operation is not supported for partitioned tables.
+DROP TABLE unlogged1;
CREATE TABLE as_select1 AS SELECT * FROM pg_class WHERE relkind = 'r';
CREATE TABLE as_select1 AS SELECT * FROM pg_class WHERE relkind = 'r';
ERROR: relation "as_select1" already exists
diff --git a/src/test/regress/sql/create_table.sql b/src/test/regress/sql/create_table.sql
index 1fd4cbfa7ef..37a227148e9 100644
--- a/src/test/regress/sql/create_table.sql
+++ b/src/test/regress/sql/create_table.sql
@@ -30,6 +30,12 @@ CREATE TEMP TABLE pg_temp.doubly_temp (a int primary key); -- also OK
CREATE TEMP TABLE public.temp_to_perm (a int primary key); -- not OK
DROP TABLE unlogged1, public.unlogged2;
+CREATE UNLOGGED TABLE unlogged1 (a int) PARTITION BY RANGE (a); -- fail
+CREATE TABLE unlogged1 (a int) PARTITION BY RANGE (a); -- ok
+ALTER TABLE unlogged1 SET LOGGED; -- fails
+ALTER TABLE unlogged1 SET UNLOGGED; -- fails
+DROP TABLE unlogged1;
+
CREATE TABLE as_select1 AS SELECT * FROM pg_class WHERE relkind = 'r';
CREATE TABLE as_select1 AS SELECT * FROM pg_class WHERE relkind = 'r';
CREATE TABLE IF NOT EXISTS as_select1 AS SELECT * FROM pg_class WHERE relkind = 'r';