diff options
Diffstat (limited to 'src/backend/access/hash/hashfunc.c')
| -rw-r--r-- | src/backend/access/hash/hashfunc.c | 75 |
1 files changed, 4 insertions, 71 deletions
diff --git a/src/backend/access/hash/hashfunc.c b/src/backend/access/hash/hashfunc.c index 8da88101dd1..37b7722b8c1 100644 --- a/src/backend/access/hash/hashfunc.c +++ b/src/backend/access/hash/hashfunc.c @@ -7,7 +7,7 @@ * * * IDENTIFICATION - * $Header: /cvsroot/pgsql/src/backend/access/hash/hashfunc.c,v 1.6 1997/09/08 21:40:47 momjian Exp $ + * $Header: /cvsroot/pgsql/src/backend/access/hash/hashfunc.c,v 1.7 1998/03/30 17:22:08 momjian Exp $ * * NOTES * These functions are stored in pg_amproc. For each operator class @@ -133,6 +133,8 @@ hashoid(Oid key) return ((uint32) ~key); } +#define PRIME1 37 +#define PRIME2 1048583 uint32 hashchar(char key) @@ -140,12 +142,8 @@ hashchar(char key) int len; uint32 h; - len = sizeof(char); - -#define PRIME1 37 -#define PRIME2 1048583 - h = 0; + len = sizeof(char); /* Convert char to integer */ h = h * PRIME1 ^ (key - ' '); h %= PRIME2; @@ -153,55 +151,6 @@ 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) @@ -223,22 +172,6 @@ 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: ) |