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Reduce default selectivity estimates for geometric operators; it seems

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the old ones were not small enough to ensure r-tree and gist indexes would
get picked when available.  These numbers are totally bogus anyway, but
in the absence of any real estimation technique, we'd like to select
indexes when available ...
This commit is contained in:
Tom Lane 2001-02-15 17:55:17 +00:00
parent 83b4ab53ad
commit 39b9c9f221
1 changed files with 5 additions and 5 deletions
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10
src/backend/utils/adt/geo_selfuncs.c
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@ -9,7 +9,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/geo_selfuncs.c,v 1.18 2001/01/24 19:43:14 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/geo_selfuncs.c,v 1.19 2001/02/15 17:55:17 tgl Exp $
*
* XXX These are totally bogus. Perhaps someone will make them do
* something reasonable, someday.
@ -47,13 +47,13 @@
Datum
areasel(PG_FUNCTION_ARGS)
{
PG_RETURN_FLOAT8(0.02);
PG_RETURN_FLOAT8(0.005);
}
Datum
areajoinsel(PG_FUNCTION_ARGS)
{
PG_RETURN_FLOAT8(0.02);
PG_RETURN_FLOAT8(0.005);
}
/*
@ -85,11 +85,11 @@ positionjoinsel(PG_FUNCTION_ARGS)
Datum
contsel(PG_FUNCTION_ARGS)
{
PG_RETURN_FLOAT8(0.01);
PG_RETURN_FLOAT8(0.001);
}
Datum
contjoinsel(PG_FUNCTION_ARGS)
{
PG_RETURN_FLOAT8(0.01);
PG_RETURN_FLOAT8(0.001);
}