static const char *const BASE_OUT = "base.tzst";
static const char *const BASE_BACKUP_ARGV[] = {
	"pg_basebackup",
	"-F", "t",
	"-X", "none",
	"-D", "-",
	NULL,
};
static const char *const BASE_COMPRESS_ARGV[] = {
	"zstd", "-12", "-T0", NULL,
};

static const char *const WAL_EXT = ".zst";
static const char *const WAL_COMPRESS_ARGV[] = {
	"zstd", "-19", "--single-thread", NULL,
};