free_pg_null     4059 ext/pgsql/pgsql.c 	size_t table_name_len, pg_delim_len, pg_null_as_len, free_pg_null = 0;
free_pg_null     4087 ext/pgsql/pgsql.c 		free_pg_null = 1;
free_pg_null     4096 ext/pgsql/pgsql.c 	if (free_pg_null) {