diff --git a/src/common/backend/parser/gram.y b/src/common/backend/parser/gram.y
index 3a00caa61..f31301087 100644
--- a/src/common/backend/parser/gram.y
+++ b/src/common/backend/parser/gram.y
@@ -8078,6 +8078,24 @@ ColConstraintElem:
 					n->cooked_expr = NULL;
 					$$ = (Node *)n;
 				}
+			| DEFAULT FCONST_F
+				{
+					Constraint *n = makeNode(Constraint);
+					n->contype = CONSTR_DEFAULT;
+					n->location = @1;
+					n->raw_expr = makeFloatConst($2, @2);
+					n->cooked_expr = NULL;
+					$$ = (Node *)n;
+				}
+			| DEFAULT FCONST_D
+				{
+					Constraint *n = makeNode(Constraint);
+					n->contype = CONSTR_DEFAULT;
+					n->location = @1;
+					n->raw_expr = makeFloatConst($2, @2);;
+					n->cooked_expr = NULL;
+					$$ = (Node *)n;
+				}
 			| ON_UPDATE_TIME UPDATE b_expr
 				{
 #ifndef ENABLE_MULTIPLE_NODES
diff --git a/src/common/interfaces/libpq/frontend_parser/gram.y b/src/common/interfaces/libpq/frontend_parser/gram.y
index 8d8fa4525..ad545adee 100755
--- a/src/common/interfaces/libpq/frontend_parser/gram.y
+++ b/src/common/interfaces/libpq/frontend_parser/gram.y
@@ -5560,6 +5560,24 @@ ColConstraintElem:
 					n->cooked_expr = NULL;
 					$$ = (Node *)n;
 				}
+			| DEFAULT FCONST_F
+				{
+					Constraint *n = makeNode(Constraint);
+					n->contype = CONSTR_DEFAULT;
+					n->location = @1;
+					n->raw_expr = makeFloatConst($2, @2);
+					n->cooked_expr = NULL;
+					$$ = (Node *)n;
+				}
+			| DEFAULT FCONST_D
+				{
+					Constraint *n = makeNode(Constraint);
+					n->contype = CONSTR_DEFAULT;
+					n->location = @1;
+					n->raw_expr = makeFloatConst($2, @2);;
+					n->cooked_expr = NULL;
+					$$ = (Node *)n;
+				}
 			| GENERATED ALWAYS AS '(' a_expr ')' STORED
 				{
 #ifdef ENABLE_MULTIPLE_NODES
diff --git a/src/test/regress/expected/test_binary_suffix.out b/src/test/regress/expected/test_binary_suffix.out
index 829f3d54d..c222e3eec 100644
--- a/src/test/regress/expected/test_binary_suffix.out
+++ b/src/test/regress/expected/test_binary_suffix.out
@@ -950,5 +950,36 @@ create type binary_double_nan AS (
 );
 drop type binary_double_nan;
 set disable_keyword_options = '';
+set float_suffix_acceptance = on;
+CREATE TABLE employees (
+emp_id INT PRIMARY KEY,
+emp_name VARCHAR(100) NOT NULL,
+emp_salary DECIMAL(10, 2) DEFAULT 3.14f,
+hire_date DATE DEFAULT CURRENT_DATE
+);
+NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index "employees_pkey" for table "employees"
+INSERT INTO employees (emp_id, emp_name, hire_date) VALUES (1, 'John Doe', '2024-01-01');
+SELECT * FROM employees;
+ emp_id | emp_name | emp_salary |        hire_date         
+--------+----------+------------+--------------------------
+      1 | John Doe |       3.14 | Mon Jan 01 00:00:00 2024
+(1 row)
+
+DROP TABLE employees;
+CREATE TABLE employees (
+emp_id INT PRIMARY KEY,
+emp_name VARCHAR(100) NOT NULL,
+emp_salary DECIMAL(10, 2) DEFAULT 3.14d,
+hire_date DATE DEFAULT CURRENT_DATE
+);
+NOTICE:  CREATE TABLE / PRIMARY KEY will create implicit index "employees_pkey" for table "employees"
+INSERT INTO employees (emp_id, emp_name, hire_date) VALUES (1, 'John Doe', '2024-01-01');
+SELECT * FROM employees;
+ emp_id | emp_name | emp_salary |        hire_date         
+--------+----------+------------+--------------------------
+      1 | John Doe |       3.14 | Mon Jan 01 00:00:00 2024
+(1 row)
+
+DROP TABLE employees;
 drop schema if exists test_binary cascade;
 NOTICE:  drop cascades to type "binary_double_infinity"
diff --git a/src/test/regress/sql/test_binary_suffix.sql b/src/test/regress/sql/test_binary_suffix.sql
index b25346156..f09853aef 100644
--- a/src/test/regress/sql/test_binary_suffix.sql
+++ b/src/test/regress/sql/test_binary_suffix.sql
@@ -362,4 +362,25 @@ create type binary_double_nan AS (
 drop type binary_double_nan;
 set disable_keyword_options = '';
 
+set float_suffix_acceptance = on;
+CREATE TABLE employees (
+emp_id INT PRIMARY KEY,
+emp_name VARCHAR(100) NOT NULL,
+emp_salary DECIMAL(10, 2) DEFAULT 3.14f,
+hire_date DATE DEFAULT CURRENT_DATE
+);
+INSERT INTO employees (emp_id, emp_name, hire_date) VALUES (1, 'John Doe', '2024-01-01');
+SELECT * FROM employees;
+DROP TABLE employees;
+
+CREATE TABLE employees (
+emp_id INT PRIMARY KEY,
+emp_name VARCHAR(100) NOT NULL,
+emp_salary DECIMAL(10, 2) DEFAULT 3.14d,
+hire_date DATE DEFAULT CURRENT_DATE
+);
+INSERT INTO employees (emp_id, emp_name, hire_date) VALUES (1, 'John Doe', '2024-01-01');
+SELECT * FROM employees;
+DROP TABLE employees;
+
 drop schema if exists test_binary cascade;