From b99f3006756e6fe32f411533bc40d9cd9987b009 Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Mon, 10 Jan 2000 04:36:37 +0000
Subject: [PATCH] Move INDEX_MAX_KEYS to postgres.h, and make it configurable
 for users.

---
 src/backend/utils/adt/oid.c    | 43 ++++++++++++++++------------------
 src/include/catalog/pg_index.h |  5 +---
 src/include/postgres.h         |  8 ++++---
 3 files changed, 26 insertions(+), 30 deletions(-)

diff --git a/src/backend/utils/adt/oid.c b/src/backend/utils/adt/oid.c
index ab53a4e86c..5ca8061339 100644
--- a/src/backend/utils/adt/oid.c
+++ b/src/backend/utils/adt/oid.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/oid.c,v 1.28 1999/07/17 20:17:58 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/oid.c,v 1.29 2000/01/10 04:36:34 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -30,26 +30,23 @@ Oid *
 oid8in(char *oidString)
 {
 	Oid		   *result;
-	int			nums;
+	int			slot;
 
 	if (oidString == NULL)
 		return NULL;
 
-	result = (Oid *) palloc(sizeof(Oid[8]));
-	if ((nums = sscanf(oidString, "%u%u%u%u%u%u%u%u",
-					   &result[0],
-					   &result[1],
-					   &result[2],
-					   &result[3],
-					   &result[4],
-					   &result[5],
-					   &result[6],
-					   &result[7])) != 8)
+	result = (Oid *) palloc(sizeof(Oid[INDEX_MAX_KEYS]));
+
+	for (slot=0; *oidString && slot < INDEX_MAX_KEYS; slot++)
 	{
-		do
-			result[nums++] = 0;
-		while (nums < 8);
+		if (sscanf(oidString, "%u", &result[slot]) != 1)
+			break;
+		while (*oidString && *oidString != ' ')
+			oidString++;
 	}
+	while (slot < INDEX_MAX_KEYS)
+		result[slot++] = 0;
+
 	return result;
 }
 
@@ -73,9 +70,9 @@ oid8out(Oid *oidArray)
 	}
 
 	/* assumes sign, 10 digits, ' ' */
-	rp = result = (char *) palloc(8 * 12);
+	rp = result = (char *) palloc(INDEX_MAX_KEYS * 12);
 	sp = oidArray;
-	for (num = 8; num != 0; num--)
+	for (num = INDEX_MAX_KEYS; num != 0; num--)
 	{
 		ltoa(*sp++, rp);
 		while (*++rp != '\0')
@@ -121,13 +118,13 @@ oidne(Oid arg1, Oid arg2)
 bool
 oid8eq(Oid *arg1, Oid *arg2)
 {
-	return (bool) (memcmp(arg1, arg2, 8 * sizeof(Oid)) == 0);
+	return (bool) (memcmp(arg1, arg2, INDEX_MAX_KEYS * sizeof(Oid)) == 0);
 }
 
 bool
 oid8ne(Oid *arg1, Oid *arg2)
 {
-	return (bool) (memcmp(arg1, arg2, 8 * sizeof(Oid)) != 0);
+	return (bool) (memcmp(arg1, arg2, INDEX_MAX_KEYS * sizeof(Oid)) != 0);
 }
 
 bool
@@ -135,7 +132,7 @@ oid8lt(Oid *arg1, Oid *arg2)
 {
 	int			i;
 
-	for (i = 0; i < 8; i++)
+	for (i = 0; i < INDEX_MAX_KEYS; i++)
 		if (!int4eq(arg1[i], arg2[i]))
 			return int4lt(arg1[i], arg2[i]);
 	return false;
@@ -146,7 +143,7 @@ oid8le(Oid *arg1, Oid *arg2)
 {
 	int			i;
 
-	for (i = 0; i < 8; i++)
+	for (i = 0; i < INDEX_MAX_KEYS; i++)
 		if (!int4eq(arg1[i], arg2[i]))
 			return int4le(arg1[i], arg2[i]);
 	return true;
@@ -157,7 +154,7 @@ oid8ge(Oid *arg1, Oid *arg2)
 {
 	int			i;
 
-	for (i = 0; i < 8; i++)
+	for (i = 0; i < INDEX_MAX_KEYS; i++)
 		if (!int4eq(arg1[i], arg2[i]))
 			return int4ge(arg1[i], arg2[i]);
 	return true;
@@ -168,7 +165,7 @@ oid8gt(Oid *arg1, Oid *arg2)
 {
 	int			i;
 
-	for (i = 0; i < 8; i++)
+	for (i = 0; i < INDEX_MAX_KEYS; i++)
 		if (!int4eq(arg1[i], arg2[i]))
 			return int4gt(arg1[i], arg2[i]);
 	return false;
diff --git a/src/include/catalog/pg_index.h b/src/include/catalog/pg_index.h
index ee0fa2284f..5ab3af31e5 100644
--- a/src/include/catalog/pg_index.h
+++ b/src/include/catalog/pg_index.h
@@ -7,7 +7,7 @@
  *
  * Copyright (c) 1994, Regents of the University of California
  *
- * $Id: pg_index.h,v 1.12 1999/05/25 16:13:45 momjian Exp $
+ * $Id: pg_index.h,v 1.13 2000/01/10 04:36:37 momjian Exp $
  *
  * NOTES
  *	  the genbki.sh script reads this file and generates .bki
@@ -58,9 +58,6 @@ CATALOG(pg_index)
 	text		indpred;		/* query plan for partial index predicate */
 } FormData_pg_index;
 
-#define INDEX_MAX_KEYS 8		/* maximum number of keys in an index
-								 * definition */
-
 /* ----------------
  *		Form_pg_index corresponds to a pointer to a tuple with
  *		the format of pg_index relation.
diff --git a/src/include/postgres.h b/src/include/postgres.h
index e03922ceda..6d9c2bfd81 100644
--- a/src/include/postgres.h
+++ b/src/include/postgres.h
@@ -6,7 +6,7 @@
  *
  * Copyright (c) 1995, Regents of the University of California
  *
- * $Id: postgres.h,v 1.31 1999/12/21 00:06:41 wieck Exp $
+ * $Id: postgres.h,v 1.32 2000/01/10 04:36:36 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -101,8 +101,10 @@ struct varlena
 typedef struct varlena bytea;
 typedef struct varlena text;
 
-typedef int2 int28[8];
-typedef Oid oid8[8];
+#define INDEX_MAX_KEYS 8		/* maximum number of keys in an index
+								 * definition */
+typedef int2 int28[INDEX_MAX_KEYS];
+typedef Oid oid8[INDEX_MAX_KEYS];
 
 
 /*