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secondo/Algebras/NestedRelation2/tst/indexes
2026-01-23 17:03:45 +08:00

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let idx1 = intstream(0,((tstTupleCountTop * 1) - 1)) use[ fun(i:int) ((i mod 2) * i) + (((tstTupleCountTop * 1) - i ) * ((i + 1) mod 2)) ] namedtransformstream[TupleId] extend[Tid: int2tid( .TupleId )] consume;
let idx2 = intstream(0,((tstTupleCountTop * 2) - 1)) use[ fun(i:int) ((i mod 2) * i) + (((tstTupleCountTop * 2) - i ) * ((i + 1) mod 2)) ] namedtransformstream[TupleId] extend[Tid: int2tid( .TupleId )] consume;
let idx3 = intstream(0,((tstTupleCountTop * 4) - 1)) use[ fun(i:int) ((i mod 2) * i) + (((tstTupleCountTop * 4) - i ) * ((i + 1) mod 2)) ] namedtransformstream[TupleId] extend[Tid: int2tid( .TupleId )] consume;