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Commit af5ced9c authored by Tom Lane's avatar Tom Lane
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Further work on connecting the free space map (which is still just a 

stub) into the rest of the system.  Adopt a cleaner approach to preventing
deadlock in concurrent heap_updates: allow RelationGetBufferForTuple to
select any page of the rel, and put the onus on it to lock both buffers
in a consistent order.  Remove no-longer-needed isExtend hack from
API of ReleaseAndReadBuffer.
parent 0eab92c0
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