psReplication
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DBArray::DBArray ID=2, UAID=1, ps=1, desc=foo@1<val:double> [x=1:10 (4611686018427387903:-4611686018427387903),10,0] ArrayId: 2 UnversionedArrayId: 1 Version: 1 Flags: 0 PartitioningSchema: 1 <val:double,EmptyTag:indicator>
enum PartitioningSchema
{
psUninitialized = -1, // e.g. _ps after ArrayDesc::ArrayDesc()
psMIN = 0,
psReplication = psMIN,
psHashPartitioned,
psLocalInstance,
psByRow,
psByCol,
psUndefined, // a range of meanings, including sometimes "wildcard"
// TODO: replace with psWildcard and others as required
psGroupby,
psScaLAPACK,
// A newly introduced partitioning schema should be added before this line.
psEND
};
inline PartitioningSchema defaultPartitioning()
{
// you MAY NOT change this from psHashPartitioned at this time
// this is scaffolding code that is locating all the places where
// psHashPartitioned is assumed which need to be generalized.
// there are further changes in the optimizer that must be planned first
// and then we can decide which PartitioningSchema variable is the
// definitive one. Until then, the code will read "defaultParitioning()"
// and the reader should think "psHashPartitioned"
return psHashPartitioned;
}
std::shared_ptr<Array> replicated = redistributeToRandomAccess(input1, query, psReplication,
ALL_INSTANCE_MASK,
std::shared_ptr<CoordinateTranslator>(),
0,
std::shared_ptr<PartitioningSchemaData>());
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