From 64568100787a5d03d036e70b32147385a35245e2 Mon Sep 17 00:00:00 2001
From: "Thomas G. Lockhart" <lockhart@fourpalms.org>
Date: Tue, 14 Mar 2000 23:06:59 +0000
Subject: Implement column aliases on views "CREATE VIEW name (collist)".
 Implement TIME WITH TIME ZONE type (timetz internal type). Remap length() for
 character strings to CHAR_LENGTH() for SQL92  and to remove the ambiguity
 with geometric length() functions. Keep length() for character strings for
 backward compatibility. Shrink stored views by removing internal column name
 list from visible rte. Implement min(), max() for time and timetz data types.
 Implement conversion of TIME to INTERVAL. Implement abs(), mod(), fac() for
 the int8 data type. Rename some math functions to generic names:  round(),
 sqrt(), cbrt(), pow(), etc. Rename NUMERIC power() function to pow(). Fix
 int2 factorial to calculate result in int4. Enhance the Oracle compatibility
 function translate() to work with string  arguments (from Edwin Ramirez).
 Modify pg_proc system table to remove OID holes.

---
 src/backend/utils/adt/int.c | 23 +++++++++++++++++++----
 1 file changed, 19 insertions(+), 4 deletions(-)

(limited to 'src/backend/utils/adt/int.c')

diff --git a/src/backend/utils/adt/int.c b/src/backend/utils/adt/int.c
index 244bf3aaa4b..7eb7783274c 100644
--- a/src/backend/utils/adt/int.c
+++ b/src/backend/utils/adt/int.c
@@ -8,7 +8,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/int.c,v 1.34 2000/03/07 23:58:38 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/int.c,v 1.35 2000/03/14 23:06:36 thomas Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -659,8 +659,8 @@ int42mod(int32 arg1, int32 arg2)
 	return arg1 % arg2;
 }
 
-/*
- *		int[24]fac		- returns arg1!
+/* int[24]fac()
+ * Factorial
  */
 int32
 int4fac(int32 arg1)
@@ -678,7 +678,7 @@ int4fac(int32 arg1)
 int32
 int2fac(int16 arg1)
 {
-	int16		result;
+	int32		result;
 
 	if (arg1 < 1)
 		result = 0;
@@ -688,6 +688,21 @@ int2fac(int16 arg1)
 	return result;
 }
 
+/* int[24]abs()
+ * Absolute value
+ */
+int32
+int4abs(int32 arg1)
+{
+	return ((arg1 < 0)? -arg1: arg1);
+}
+
+int16
+int2abs(int16 arg1)
+{
+	return ((arg1 < 0)? -arg1: arg1);
+}
+
 int16
 int2larger(int16 arg1, int16 arg2)
 {
-- 
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