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check for null value before looking up the hash function - Mailing list pgsql-hackers

From	Zhihong Yu
Subject	check for null value before looking up the hash function
Date	May 20, 2022 21:41:57
Msg-id	CALNJ-vTN7miyUy4tYcBF6C1F9z-YhfecAGiBAO41062s4-S0zQ@mail.gmail.com Whole thread Raw
Responses	Re: check for null value before looking up the hash function (Tom Lane <tgl@sss.pgh.pa.us>)
List	pgsql-hackers

Hi,

I was looking at the code in hash_record() of src/backend/utils/adt/rowtypes.c

It seems if nulls[i] is true, we don't need to look up the hash function.

Please take a look at the patch.

Thanks

Attachment

hash-record-check-null-first.patch

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