DROP GROUP tg1;
ERROR: role "tg1" does not exist
-- collation
-DROP COLLATION test_collation_exists;
-ERROR: collation "test_collation_exists" for encoding "UTF8" does not exist
DROP COLLATION IF EXISTS test_collation_exists;
NOTICE: collation "test_collation_exists" does not exist, skipping
-CREATE COLLATION test_collation_exists FROM "POSIX";
-DROP COLLATION test_collation_exists;
-- conversion
DROP CONVERSION test_conversion_exists;
ERROR: conversion "test_conversion_exists" does not exist
DROP GROUP tg1;
-- collation
-DROP COLLATION test_collation_exists;
DROP COLLATION IF EXISTS test_collation_exists;
-CREATE COLLATION test_collation_exists FROM "POSIX";
-DROP COLLATION test_collation_exists;
-- conversion
DROP CONVERSION test_conversion_exists;