database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-28 23:42:10 +03:00
Code Activity

- Add aligment of variable data types

Browse Source 
- Add aligment for interval data types
- Avoid floating point overflow in penalty functions
Janko Richter <jankorichter@yahoo.de> and teodor
This commit is contained in:
Teodor Sigaev
2004-06-03 12:26:10 +00:00
parent 921d749bd4
commit 7b81988f9b
17 changed files with 161 additions and 110 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
contrib/btree_gist/btree_utils_var.c
View File

@ -9,7 +9,7 @@ extern GBT_VARKEY_R gbt_var_key_readable ( const GBT_VARKEY * k ){
GBT_VARKEY_R r ;
r.lower = ( bytea * ) &(((char*)k)[VARHDRSZ] ) ;
if ( VARSIZE(k) > ( VARHDRSZ+(VARSIZE(r.lower)) ) )
r.upper = ( bytea * ) &(((char*)k)[VARHDRSZ+(VARSIZE(r.lower))] ) ;
r.upper = ( bytea * ) &(((char*)k)[VARHDRSZ+INTALIGN(VARSIZE(r.lower))] ) ;
else
r.upper = r.lower;
return r;
@ -28,10 +28,10 @@ extern GBT_VARKEY * gbt_var_key_copy ( const GBT_VARKEY_R * u , bool force_node
} else { /* node key mode */
r = (GBT_VARKEY *) palloc(VARSIZE(u->lower) + VARSIZE(u->upper) + VARHDRSZ );
r = (GBT_VARKEY *) palloc(INTALIGN(VARSIZE(u->lower)) + VARSIZE(u->upper) + VARHDRSZ );
memcpy ( (void*) VARDATA(r) , (void*) u->lower , VARSIZE(u->lower) );
memcpy ( (void*)&(((char *)r)[VARHDRSZ+VARSIZE(u->lower)]), (void*) u->upper , VARSIZE(u->upper) );
r->vl_len = VARSIZE(u->lower) + VARSIZE(u->upper) + VARHDRSZ ;
memcpy ( (void*)&(((char *)r)[VARHDRSZ+INTALIGN(VARSIZE(u->lower))]), (void*) u->upper , VARSIZE(u->upper) );
r->vl_len = INTALIGN(VARSIZE(u->lower)) + VARSIZE(u->upper) + VARHDRSZ ;
}
return r;
@ -153,19 +153,19 @@ static GBT_VARKEY * gbt_var_node_truncate ( const GBT_VARKEY * node , int32 leng
len1 = Min( len1, length ) ;
len2 = Min( len2, length ) ;
si = 3*VARHDRSZ + len1 + len2;
si = 2*VARHDRSZ + INTALIGN(VARHDRSZ+len1) + len2;
out = (GBT_VARKEY *) palloc ( si );
out->vl_len = si;
memcpy ( (void*) &(((char*)out)[VARHDRSZ]) , (void*)r.lower, len1+VARHDRSZ-s );
memcpy ( (void*) &(((char*)out)[2*VARHDRSZ+len1]) , (void*)r.upper, len2+VARHDRSZ-s );
memcpy ( (void*) &(((char*)out)[VARHDRSZ+INTALIGN(VARHDRSZ+len1)]) , (void*)r.upper, len2+VARHDRSZ-s );
if (tinfo->str)
{
((char*)out)[2*VARHDRSZ+len1-1] = '\0';
((char*)out)[3*VARHDRSZ+len1+len2-1] = '\0';
((char*)out)[VARHDRSZ+INTALIGN(VARHDRSZ+len1)-1] = '\0';
((char*)out)[2*VARHDRSZ+INTALIGN(VARHDRSZ+len1)+len2-1] = '\0';
}
*((int32*)&(((char*)out)[VARHDRSZ])) = len1 + VARHDRSZ;
*((int32*)&(((char*)out)[2*VARHDRSZ+len1])) = len2 + VARHDRSZ;
*((int32*)&(((char*)out)[VARHDRSZ+INTALIGN(VARHDRSZ+len1)])) = len2 + VARHDRSZ;
return out;
}