diff --git a/src/backend/parser/parse_utilcmd.c b/src/backend/parser/parse_utilcmd.c
index 2b9598c2da..a48b4b0d3a 100644
--- a/src/backend/parser/parse_utilcmd.c
+++ b/src/backend/parser/parse_utilcmd.c
@@ -4081,8 +4081,20 @@ transformPartitionBoundValue(ParseState *pstate, Node *val,
 	{
 		Oid			exprCollOid = exprCollation(value);
 
-		if (OidIsValid(exprCollOid) &&
-			exprCollOid != DEFAULT_COLLATION_OID &&
+		/*
+		 * Note that the expression transformation above ensures the
+		 * existence of the collation as a lookup of its name has been
+		 * done.
+		 */
+		Assert(OidIsValid(exprCollOid));
+
+		if (!type_is_collatable(colType))
+			ereport(ERROR,
+					(errcode(ERRCODE_DATATYPE_MISMATCH),
+					 errmsg("collations are not supported by type %s",
+							format_type_be(colType))));
+
+		if (exprCollOid != DEFAULT_COLLATION_OID &&
 			exprCollOid != partCollation)
 			ereport(ERROR,
 					(errcode(ERRCODE_DATATYPE_MISMATCH),
diff --git a/src/test/regress/expected/create_table.out b/src/test/regress/expected/create_table.out
index 6acf31725f..1c72f23bc9 100644
--- a/src/test/regress/expected/create_table.out
+++ b/src/test/regress/expected/create_table.out
@@ -652,6 +652,12 @@ CREATE TABLE part_bogus_expr_fail PARTITION OF list_parted FOR VALUES IN (genera
 ERROR:  set-returning functions are not allowed in partition bound
 LINE 1: ...expr_fail PARTITION OF list_parted FOR VALUES IN (generate_s...
                                                              ^
+CREATE TABLE part_bogus_expr_fail PARTITION OF list_parted FOR VALUES IN ('1' collate "POSIX");
+ERROR:  collations are not supported by type integer
+CREATE TABLE part_bogus_expr_fail PARTITION OF list_parted FOR VALUES IN ((1+1) collate "POSIX");
+ERROR:  collations are not supported by type integer
+LINE 1: ...ail PARTITION OF list_parted FOR VALUES IN ((1+1) collate "P...
+                                                             ^
 -- syntax does not allow empty list of values for list partitions
 CREATE TABLE fail_part PARTITION OF list_parted FOR VALUES IN ();
 ERROR:  syntax error at or near ")"
diff --git a/src/test/regress/sql/create_table.sql b/src/test/regress/sql/create_table.sql
index a670438c48..9b1adcb8ad 100644
--- a/src/test/regress/sql/create_table.sql
+++ b/src/test/regress/sql/create_table.sql
@@ -549,6 +549,8 @@ CREATE TABLE part_bogus_expr_fail PARTITION OF list_parted FOR VALUES IN (sum(so
 CREATE TABLE part_bogus_expr_fail PARTITION OF list_parted FOR VALUES IN (sum(1));
 CREATE TABLE part_bogus_expr_fail PARTITION OF list_parted FOR VALUES IN ((select 1));
 CREATE TABLE part_bogus_expr_fail PARTITION OF list_parted FOR VALUES IN (generate_series(4, 6));
+CREATE TABLE part_bogus_expr_fail PARTITION OF list_parted FOR VALUES IN ('1' collate "POSIX");
+CREATE TABLE part_bogus_expr_fail PARTITION OF list_parted FOR VALUES IN ((1+1) collate "POSIX");
 
 -- syntax does not allow empty list of values for list partitions
 CREATE TABLE fail_part PARTITION OF list_parted FOR VALUES IN ();