Add support for contraints in table valued function definitions

Author: aharpervc

src/parser/mod.rs

@@ -9849,13 +9849,7 @@ impl<'a> Parser<'a> {
     }
 
     fn parse_returns_table_column(&mut self) -> Result<ColumnDef, ParserError> {
-        let name = self.parse_identifier()?;
-        let data_type = self.parse_data_type()?;
-        Ok(ColumnDef {
-            name,
-            data_type,
-            options: Vec::new(), // No constraints expected here
-        })
+        Ok(self.parse_column_def()?)
     }
 
     fn parse_returns_table_columns(&mut self) -> Result<Vec<ColumnDef>, ParserError> {

tests/sqlparser_mssql.rs

@@ -327,6 +327,17 @@ fn parse_create_function() {
         &create_multi_statement_table_value_function_without_as,
         create_multi_statement_table_value_function,
     );
+
+    let create_multi_statement_table_value_function_with_constraints = "\
+        CREATE FUNCTION some_multi_statement_tvf(@foo INT, @bar VARCHAR(256)) \
+        RETURNS @t TABLE (col_1 INT NOT NULL) \
+        AS \
+        BEGIN \
+            INSERT INTO @t SELECT 1; \
+            RETURN @t; \
+        END\
+    ";
+    let _ = ms().verified_stmt(create_multi_statement_table_value_function_with_constraints);
 }
 
 #[test]