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35ea75632a
Previously, tuple descriptors were stored in chains keyed by a fixed size array of OIDs. That meant there were effectively two levels of collision chain -- one inside and one outside the hash table. Instead, let dynahash.c look after conflicts for us by supplying a proper hash and equal function pair. This is a nice cleanup on its own, but also simplifies followup changes allowing blessed TupleDescs to be shared between backends participating in parallel query. Author: Thomas Munro Reviewed-By: Andres Freund Discussion: https://postgr.es/m/CAEepm%3D34GVhOL%2BarUx56yx7OPk7%3DqpGsv3CpO54feqjAwQKm5g%40mail.gmail.com |
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