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mirror of https://github.com/postgres/postgres.git synced 2025-08-30 06:01:21 +03:00

Back out char2-char16 removal. Add later.

This commit is contained in:
Bruce Momjian
1998-04-07 18:14:38 +00:00
parent 6a3c751448
commit db21523314
64 changed files with 1339 additions and 510 deletions

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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/common/tupdesc.c,v 1.37 1998/03/30 17:22:05 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/access/common/tupdesc.c,v 1.38 1998/04/07 18:09:44 momjian Exp $
*
* NOTES
* some of the executor utility code such as "ExecTypeFromTL" should be
@@ -317,7 +317,7 @@ TupleDescInitEntry(TupleDesc desc,
*
* Note: in the special case of
*
* create EMP (name = text, manager = EMP)
* create EMP (name = char16, manager = EMP)
*
* RelationNameCreateHeapRelation() calls BuildDesc() which
* calls this routine and since EMP does not exist yet, the

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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/hash/hashfunc.c,v 1.7 1998/03/30 17:22:08 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/access/hash/hashfunc.c,v 1.8 1998/04/07 18:09:46 momjian Exp $
*
* NOTES
* These functions are stored in pg_amproc. For each operator class
@@ -133,8 +133,6 @@ hashoid(Oid key)
return ((uint32) ~key);
}
#define PRIME1 37
#define PRIME2 1048583
uint32
hashchar(char key)
@@ -142,8 +140,12 @@ hashchar(char key)
int len;
uint32 h;
h = 0;
len = sizeof(char);
#define PRIME1 37
#define PRIME2 1048583
h = 0;
/* Convert char to integer */
h = h * PRIME1 ^ (key - ' ');
h %= PRIME2;
@@ -151,6 +153,55 @@ hashchar(char key)
return (h);
}
uint32
hashchar2(uint16 intkey)
{
uint32 h;
int len;
char *key = (char *) &intkey;
h = 0;
len = sizeof(uint16);
/* Convert string to integer */
while (len--)
h = h * PRIME1 ^ (*key++ - ' ');
h %= PRIME2;
return (h);
}
uint32
hashchar4(uint32 intkey)
{
uint32 h;
int len;
char *key = (char *) &intkey;
h = 0;
len = sizeof(uint32);
/* Convert string to integer */
while (len--)
h = h * PRIME1 ^ (*key++ - ' ');
h %= PRIME2;
return (h);
}
uint32
hashchar8(char *key)
{
uint32 h;
int len;
h = 0;
len = sizeof(char8);
/* Convert string to integer */
while (len--)
h = h * PRIME1 ^ (*key++ - ' ');
h %= PRIME2;
return (h);
}
uint32
hashname(NameData *n)
@@ -172,6 +223,22 @@ hashname(NameData *n)
}
uint32
hashchar16(char *key)
{
uint32 h;
int len;
h = 0;
len = sizeof(char16);
/* Convert string to integer */
while (len--)
h = h * PRIME1 ^ (*key++ - ' ');
h %= PRIME2;
return (h);
}
/*
* (Comment from the original db3 hashing code: )

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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtcompare.c,v 1.14 1998/03/30 17:22:17 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/access/nbtree/nbtcompare.c,v 1.15 1998/04/07 18:09:51 momjian Exp $
*
* NOTES
* These functions are stored in pg_amproc. For each operator class
@@ -101,6 +101,30 @@ btcharcmp(char a, char b)
return ((int32) ((uint8) a - (uint8) b));
}
int32
btchar2cmp(uint16 a, uint16 b)
{
return (strncmp((char *) &a, (char *) &b, 2));
}
int32
btchar4cmp(uint32 a, uint32 b)
{
return (strncmp((char *) &a, (char *) &b, 4));
}
int32
btchar8cmp(char *a, char *b)
{
return (strncmp(a, b, 8));
}
int32
btchar16cmp(char *a, char *b)
{
return (strncmp(a, b, 16));
}
int32
btnamecmp(NameData *a, NameData *b)
{

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@@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/access/transam/Attic/xid.c,v 1.13 1998/03/30 17:22:28 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/access/transam/Attic/xid.c,v 1.14 1998/04/07 18:10:01 momjian Exp $
*
* OLD COMMENTS
* XXX WARNING
@@ -30,14 +30,14 @@ extern TransactionId DisabledTransactionId;
extern TransactionId AmiTransactionId;
extern TransactionId FirstTransactionId;
/* XXX name for catalogs */
/* XXX char16 name for catalogs */
TransactionId
xidin(char *representation)
{
return (atol(representation));
}
/* XXX name for catalogs */
/* XXX char16 name for catalogs */
char *
xidout(TransactionId transactionId)
{