diff --git a/src/backend/distributed/commands/database.c b/src/backend/distributed/commands/database.c
index eae9df2d6..2d764176e 100644
--- a/src/backend/distributed/commands/database.c
+++ b/src/backend/distributed/commands/database.c
@@ -192,17 +192,8 @@ PreprocessGrantOnDatabaseStmt(Node *node, const char *queryString,
 
 
 /*
- * Checks if the provided ALTER DATABASE statement is a SET TABLESPACE statement.
- *
- * This function takes a Node pointer representing a AlterDatabaseStmt, and checks
- * if it is a SET TABLESPACE statement, which is used to move a table to a new
- * tablespace.
- *
- * Parameters:
- *   stmt: A pointer to a Node representing AlterDatabaseStmt.
- *
- * Returns:
- *   true if the statement is a SET TABLESPACE statement, false otherwise.
+ * IsSetTablespaceStatement returns true if given AlterDatabaseStmt contains
+ * a DefElem to alter tablespace of the target database.
  */
 static bool
 IsSetTablespaceStatement(AlterDatabaseStmt *stmt)
diff --git a/src/backend/distributed/deparser/deparse_database_stmts.c b/src/backend/distributed/deparser/deparse_database_stmts.c
index 9c455d0bb..c5ada0200 100644
--- a/src/backend/distributed/deparser/deparse_database_stmts.c
+++ b/src/backend/distributed/deparser/deparse_database_stmts.c
@@ -64,22 +64,6 @@ const DefElemOptionFormat alterDatabaseOptionFormats[] = {
 };
 
 
-/*
- * DeparseAlterDatabaseOwnerStmt
- *      Deparse an AlterDatabaseOwnerStmt node
- *
- * This function is responsible for producing a string representation of an
- * AlterDatabaseOwnerStmt node, which represents an ALTER DATABASE statement
- * that changes the owner of a database. The output string includes the ALTER
- * DATABASE keyword, the name of the database being altered, and the new owner
- * of the database.
- *
- * Parameters:
- *  - node: a pointer to the AlterDatabaseOwnerStmt node to be deparsed
- *
- * Returns:
- *  - a string representation of the ALTER DATABASE statement
- */
 char *
 DeparseAlterDatabaseOwnerStmt(Node *node)
 {