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SQL2003-standard statistical aggregates, by Sergey Koposov. I've added only

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the float8 versions of the aggregates, which is all that the standard requires.
Sergey's original patch also provided versions using numeric arithmetic,
but given the size and slowness of the code, I doubt we ought to include
those in core.
This commit is contained in:
Tom Lane
2006-07-28 18:33:04 +00:00
parent 0fd087af83
commit 1249cf8f38
12 changed files with 880 additions and 103 deletions
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4
src/include/utils/int8.h
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@@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2006, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/utils/int8.h,v 1.44 2006/03/05 15:59:07 momjian Exp $
* $PostgreSQL: pgsql/src/include/utils/int8.h,v 1.45 2006/07/28 18:33:04 tgl Exp $
*
* NOTES
* These data types are supported on all 64-bit architectures, and may
@@ -74,6 +74,8 @@ extern Datum int8div(PG_FUNCTION_ARGS);
extern Datum int8abs(PG_FUNCTION_ARGS);
extern Datum int8mod(PG_FUNCTION_ARGS);
extern Datum int8inc(PG_FUNCTION_ARGS);
extern Datum int8inc_any(PG_FUNCTION_ARGS);
extern Datum int8inc_float8_float8(PG_FUNCTION_ARGS);
extern Datum int8larger(PG_FUNCTION_ARGS);
extern Datum int8smaller(PG_FUNCTION_ARGS);