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Remove no-op GiST support functions in the core GiST opclasses.

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The preceding patch allowed us to remove useless GiST support functions.
This patch actually does that for all the no-op cases in the core GiST
code.  This buys us whatever performance gain is to be had, and more
importantly exercises the preceding patch.

There remain no-op functions in the contrib GiST opclasses, but those
will take more work to remove.

Discussion: https://postgr.es/m/CAJEAwVELVx9gYscpE=Be6iJxvdW5unZ_LkcAaVNSeOwvdwtD=A@mail.gmail.com
This commit is contained in:
Tom Lane
2017-09-19 23:32:45 -04:00
parent d3a4f89d8a
commit 2d484f9b05
10 changed files with 22 additions and 105 deletions
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12
src/backend/utils/adt/network_gist.c
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@ -576,17 +576,9 @@ inet_gist_compress(PG_FUNCTION_ARGS)
}
/*
* The GiST decompress function
*
* do not do anything --- we just use the stored GistInetKey as-is.
* We do not need a decompress function, because the other GiST inet
* support functions work with the GistInetKey representation.
*/
Datum
inet_gist_decompress(PG_FUNCTION_ARGS)
{
GISTENTRY *entry = (GISTENTRY *) PG_GETARG_POINTER(0);
PG_RETURN_POINTER(entry);
}
/*
* The GiST fetch function