Support for Vertica (or replace) Function

[klandon]

Seems creating functions with flyway in vertica works fine if the statement starts with "CREATE FUNCTION" but if you use the support "CREATE OR REPLACE FUNCTION" then the script breaks on the firs ";" and fails to migrate.

Example of code :
CREATE OR REPLACE FUNCTION default_to_hello(x VARCHAR) RETURN VARCHAR
AS BEGIN
-- The body of a SQL function in Vertica must be in the form 'RETURN expression'
RETURN (CASE WHEN (x IS NOT NULL) THEN x ELSE 'Hello' END);
END;

Error Produced:

Current version of schema "public": 2
Migrating schema "public" to version 3 - test
ERROR: Migration of schema "public" to version 3 failed! Please restore backups and roll back database and code!
ERROR:

Migration V3__test.sql failed

SQL State : 42601
Error Code : 4856
Message : [Vertica]VJDBC ERROR: Syntax error at or near "EOL"
Location : /opt/flywaydb/sql/V3__test.sql (/opt/flywaydb/sql/V3__test.sql)
Line : 1
Statement : CREATE or replace FUNCTION default_to_hello(x VARCHAR) RETURN VARCHAR
AS BEGIN
-- The body of a SQL function in Vertica must be in the form 'RETURN expression'
RETURN (CASE WHEN (x IS NOT NULL) THEN x ELSE 'Hello' END)

Code run in vertica :

dbadmin=> CREATE or replace FUNCTION default_to_hello(x VARCHAR) RETURN VARCHAR
dbadmin-> AS BEGIN
dbadmin-> -- The body of a SQL function in Vertica must be in the form 'RETURN expression'
dbadmin-> RETURN (CASE WHEN (x IS NOT NULL) THEN x ELSE 'Hello' END);
dbadmin-> END;
CREATE FUNCTION
dbadmin=> select default_to_hello('Working');

default_to_hello

Working
(1 row)

dbadmin=> select default_to_hello(null);

default_to_hello

Hello
(1 row)

[mverrilli]

#1112 if you want to try it.

[klandon]

Seems to be good to go, thanks.