ERROR: unterminated quoted string at or near

Question

While executing below shown trigger code using ANT I am getting the error

org.postgresql.util.PSQLException: ERROR: unterminated quoted string at or near "' DECLARE timeout integer"
Position: 57

I am able to sucessfully execute the below code through PGADmin (Provided by postgres) and command line utility "psql" and the trigger function is added but while executing through ANT it fails everytime

BEGIN TRANSACTION;

CREATE OR REPLACE FUNCTION sweeper() RETURNS trigger as '
    DECLARE
    timeout integer;
    BEGIN
    timeout = 30 * 24 * 60 * 60 ;
        DELETE FROM diagnosticdata WHERE current_timestamp - teststarttime  > (timeout * ''1 sec''::interval);
        return NEW;
    END;
' LANGUAGE 'plpgsql';

-- Trigger: sweep on diagnosticdata

CREATE TRIGGER sweep
  AFTER INSERT
  ON diagnosticdata
  FOR EACH ROW
  EXECUTE PROCEDURE sweeper();

END;

Answer 1

I encountered this error in liquibase and this page was one of the first search results so I guess I share my solution at this page:

You can put your whole sql in a separate file and include this in the changeset. Its important to set the splitStatements option to false.

The whole changeset would then look like

<changeSet author="fgrosse" id="530b61fec3ac9">
    <sqlFile path="your_sql_file_here.sql" splitStatements="false"/>
</changeSet>

I always like to have those big SQL parts (like function updates and such) in separate files. This way you get proper syntax highlighting when opening the sql file and dont have to intermix XML and SQL in one file.

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Edit: as mentioned in the comments its worth noting that the sql change supports the splitStatements option as well (thx to AndreyT for pointing that out).