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postgres-lambda-diff

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    Repair performance problem in SI segment manipulations: iterating
    Tom Lane authored 
    through MAXBACKENDS array entries used to be fine when MAXBACKENDS = 64.
It's not so cool with MAXBACKENDS = 1024 (or more!), especially not in a
frequently-used routine like SIDelExpiredDataEntries.  Repair by making
procState array size be the soft MaxBackends limit rather than the hard
limit, and by converting SIGetProcStateLimit() to a macro.
    dc6d4049
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    user avatar dc6d4049
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