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Commit a7db25a0 authored by unknown's avatar unknown
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Merge sanja.is.com.ua:/home/bell/mysql/mysql-4.1 

into sanja.is.com.ua:/home/bell/mysql/work-explain_union-4.1
parents d98af8f2 b50cd03b
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Showing with 26 additions and 15 deletions
mysys/my_handler.c
View file @ a7db25a0
......@@ -78,10 +78,9 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
uint32 u_1,u_2;
float f_1,f_2;
double d_1,d_2;
uint next_key_length;
*diff_pos=0;
for ( ; (int) key_length >0 ; key_length=next_key_length, keyseg++)
for ( ; (int) key_length >0 ; keyseg++)
{
uchar *end;
uint piks=! (keyseg->flag & HA_NO_SORT);
......@@ -101,12 +100,10 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
{
if (nextflag == (SEARCH_FIND | SEARCH_UPDATE))
nextflag=SEARCH_SAME; /* Allow duplicate keys */
next_key_length=key_length;
continue; /* To next key part */
}
}
end= a+ min(keyseg->length,key_length);
next_key_length=key_length-keyseg->length;
switch ((enum ha_base_keytype) keyseg->type) {
case HA_KEYTYPE_TEXT: /* Ascii; Key is converted */
......@@ -115,12 +112,12 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
int a_length,b_length,pack_length;
get_key_length(a_length,a);
get_key_pack_length(b_length,pack_length,b);
next_key_length=key_length-b_length-pack_length;
key_length-= b_length + pack_length;
if (piks &&
(flag= mi_compare_text(keyseg->charset,a,a_length,b,b_length,
(my_bool) ((nextflag & SEARCH_PREFIX) &&
next_key_length <= 0))))
key_length <= 0))))
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a+=a_length;
b+=b_length;
......@@ -129,6 +126,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
else
{
uint length=(uint) (end-a), a_length=length, b_length=length;
key_length-= keyseg->length;
if (!(nextflag & SEARCH_PREFIX))
{
while (a_length && a[a_length-1] == ' ')
......@@ -139,7 +137,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
if (piks &&
(flag= mi_compare_text(keyseg->charset,a,a_length,b,b_length,
(my_bool) ((nextflag & SEARCH_PREFIX) &&
next_key_length <= 0))))
key_length <= 0))))
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a=end;
b+=length;
......@@ -151,12 +149,12 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
int a_length,b_length,pack_length;
get_key_length(a_length,a);
get_key_pack_length(b_length,pack_length,b);
next_key_length=key_length-b_length-pack_length;
key_length-= b_length + pack_length;
if (piks &&
(flag=compare_bin(a,a_length,b,b_length,
(my_bool) ((nextflag & SEARCH_PREFIX) &&
next_key_length <= 0))))
key_length <= 0))))
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a+=a_length;
b+=b_length;
......@@ -165,10 +163,11 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
else
{
uint length=keyseg->length;
key_length-= keyseg->length;
if (piks &&
(flag=compare_bin(a,length,b,length,
(my_bool) ((nextflag & SEARCH_PREFIX) &&
next_key_length <= 0))))
key_length <= 0))))
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a+=length;
b+=length;
......@@ -179,12 +178,12 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
int a_length,b_length,pack_length;
get_key_length(a_length,a);
get_key_pack_length(b_length,pack_length,b);
next_key_length=key_length-b_length-pack_length;
key_length-= b_length + pack_length;
if (piks &&
(flag= mi_compare_text(keyseg->charset,a,a_length,b,b_length,
(my_bool) ((nextflag & SEARCH_PREFIX) &&
next_key_length <= 0))))
key_length <= 0))))
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a+=a_length;
b+=b_length;
......@@ -196,12 +195,12 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
int a_length,b_length,pack_length;
get_key_length(a_length,a);
get_key_pack_length(b_length,pack_length,b);
next_key_length=key_length-b_length-pack_length;
key_length-= b_length + pack_length;
if (piks &&
(flag=compare_bin(a,a_length,b,b_length,
(my_bool) ((nextflag & SEARCH_PREFIX) &&
next_key_length <= 0))))
key_length <= 0))))
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a+=a_length;
b+=b_length;
......@@ -216,6 +215,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a= end;
b++;
key_length-= keyseg->length;
break;
}
case HA_KEYTYPE_SHORT_INT:
......@@ -225,6 +225,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a= end;
b+= 2; /* sizeof(short int); */
key_length-= keyseg->length;
break;
case HA_KEYTYPE_USHORT_INT:
{
......@@ -235,6 +236,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a= end;
b+=2; /* sizeof(short int); */
key_length-= keyseg->length;
break;
}
case HA_KEYTYPE_LONG_INT:
......@@ -244,6 +246,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a= end;
b+= 4; /* sizeof(long int); */
key_length-= keyseg->length;
break;
case HA_KEYTYPE_ULONG_INT:
u_1= mi_sint4korr(a);
......@@ -252,6 +255,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a= end;
b+= 4; /* sizeof(long int); */
key_length-= keyseg->length;
break;
case HA_KEYTYPE_INT24:
l_1=mi_sint3korr(a);
......@@ -260,6 +264,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a= end;
b+= 3;
key_length-= keyseg->length;
break;
case HA_KEYTYPE_UINT24:
l_1=mi_uint3korr(a);
......@@ -268,6 +273,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a= end;
b+= 3;
key_length-= keyseg->length;
break;
case HA_KEYTYPE_FLOAT:
mi_float4get(f_1,a);
......@@ -276,6 +282,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a= end;
b+= 4; /* sizeof(float); */
key_length-= keyseg->length;
break;
case HA_KEYTYPE_DOUBLE:
mi_float8get(d_1,a);
......@@ -284,6 +291,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a= end;
b+= 8; /* sizeof(double); */
key_length-= keyseg->length;
break;
case HA_KEYTYPE_NUM: /* Numeric key */
{
......@@ -300,7 +308,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
{
alength= *a++; blength= *b++;
end=a+alength;
next_key_length=key_length-blength-1;
key_length-= blength + 1;
}
else
{
......@@ -309,6 +317,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
/* remove pre space from keys */
for ( ; alength && *a == ' ' ; a++, alength--) ;
for ( ; blength && *b == ' ' ; b++, blength--) ;
key_length-= keyseg->length;
}
if (piks)
......@@ -360,6 +369,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a= end;
b+= 8;
key_length-= keyseg->length;
break;
}
case HA_KEYTYPE_ULONGLONG:
......@@ -371,6 +381,7 @@ int ha_key_cmp(register HA_KEYSEG *keyseg, register uchar *a,
return ((keyseg->flag & HA_REVERSE_SORT) ? -flag : flag);
a= end;
b+= 8;
key_length-= keyseg->length;
break;
}
#endif
......
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