SQL

create table if not exists postgresql

CREATE TABLE IF NOT EXISTS table_name(id INT);

how to check table exists or not in postgresql

SELECT 1 FROM information_schema.tables
WHERE table_schema = 'schema_name'	AND table_name = 'table_name';

check table exist postgresql

SELECT EXISTS (
   SELECT FROM pg_tables
   WHERE  schemaname = 'schema_name'
   AND    tablename  = 'table_name'
   );

check table exist postgresql

"SELECT EXISTS (SELECT FROM pg_tables WHERE schemaname = 'public' AND tablename  = 'repair_service')"