GET_FUNCTION_DDL

GET_FUNCTION_DDL(<function name>) is a function that shows the CREATE FUNCTION statement for a function.

Tip

Permissions

The role must have the CONNECT permission at the database level.

Syntax

get_function_ddl_statement ::=
    SELECT GET_FUNCTION_DDL('function_name')
    ;

function_name ::= identifier

Parameters

Parameter Description
function_name The name of the function.

Examples

Getting the DDL for a function

The result of the GET_FUNCTION_DDL function is a verbose version of the CREATE FUNCTION statement, which may include additional information that was added by SQream DB. For example, some type names and identifiers may be quoted or altered.

master=> CREATE  OR  REPLACE  FUNCTION  my_distance  (x1  float,  y1  float,  x2  float,  y2  float)  RETURNS  float  as  $$
   import  math
   if  y1  <  x1:
       return  0.0
   else:
       return  math.sqrt((y2  -  y1)  **  2  +  (x2  -  x1)  **  2)
   $$  LANGUAGE  PYTHON;
executed

master=> SELECT GET_FUNCTION_DDL('my_distance');
create function "my_distance" (x1 float,
                            y1 float,
                            x2 float,
                            y2 float) returns float as
   $$
   import  math
   if  y1  <  x1:
       return  0.0
   else:
       return  math.sqrt((y2  -  y1)  **  2  +  (x2  -  x1)  **  2)
   $$
   language python volatile;

Exporting function DDL to a file

COPY (SELECT GET_FUNCTION_DDL('my_distance')) TO '/home/rhendricks/my_distance.sql';