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constraint propagation #12

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
It would be nice if Hyracks job scheduler could have some constraint inference 
capability.

Partition constraints from the leaf operator descriptors(e.g, file scan) need 
to be propagated to every downstream operators until non OneToOneExchange 
connectors are encountered.  

After MToNHashParitioningConnectorDescriptor, 
MToNRangePartitioningConnectorDescriptor or 
MToNHashParitioningMergeConnectorDescriptor, the partition constraints of 
operators could be the default one, which provided by the application.

Original issue reported on code.google.com by buyingyi@gmail.com on 27 Apr 2011 at 4:19

GoogleCodeExporter commented 9 years ago 
Issue 64 has been merged into this issue.

Original comment by vinay...@gmail.com on 3 May 2012 at 11:23