select
PgConst(90,pginterval,"day"),
PgConst("1.2345678",pginterval,"second",3),
PgConst('{90}',_pginterval,"day"),
PgConst('13.45',pgnumeric,10,1),
PgConst('{13.45}',_pgnumeric,10,1),
PgCast('90'p,pginterval,"day"),
PgCast('13.45'p,pgnumeric,10,1),
PgCast('{90}'p,_pginterval,"day"),
PgCast('{13.45}'p,_pgnumeric,10,1),
PgInterval(90, "day"),
PgNumeric(13.45, 10, 1),
_PgInterval('{90}', "day"),
_PgNumeric('{13.45}', 10, 1);
