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Cross-data-type comparisons are now indexable by btrees, pursuant to my

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pghackers proposal of 8-Nov.  All the existing cross-type comparison
operators (int2/int4/int8 and float4/float8) have appropriate support.
The original proposal of storing the right-hand-side datatype as part of
the primary key for pg_amop and pg_amproc got modified a bit in the event;
it is easier to store zero as the 'default' case and only store a nonzero
when the operator is actually cross-type.  Along the way, remove the
long-since-defunct bigbox_ops operator class.
This commit is contained in:
Tom Lane
2003-11-12 21:15:59 +00:00
parent 49f98fa833
commit fa5c8a055a
76 changed files with 2237 additions and 1492 deletions
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22
src/backend/utils/adt/float.c
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@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/float.c,v 1.94 2003/09/25 06:58:03 petere Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/adt/float.c,v 1.95 2003/11/12 21:15:54 tgl Exp $
*
*-------------------------------------------------------------------------
*/
@ -839,6 +839,26 @@ btfloat8cmp(PG_FUNCTION_ARGS)
PG_RETURN_INT32(float8_cmp_internal(arg1, arg2));
}
Datum
btfloat48cmp(PG_FUNCTION_ARGS)
{
float4 arg1 = PG_GETARG_FLOAT4(0);
float8 arg2 = PG_GETARG_FLOAT8(1);
/* widen float4 to float8 and then compare */
PG_RETURN_INT32(float8_cmp_internal(arg1, arg2));
}
Datum
btfloat84cmp(PG_FUNCTION_ARGS)
{
float8 arg1 = PG_GETARG_FLOAT8(0);
float4 arg2 = PG_GETARG_FLOAT4(1);
/* widen float4 to float8 and then compare */
PG_RETURN_INT32(float8_cmp_internal(arg1, arg2));
}
/*
* ===================