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Simplify gistSplit() and some refactoring related code.

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This commit is contained in:
Teodor Sigaev
2006-05-19 16:15:17 +00:00
parent 49b3462abb
commit 420cbff881
4 changed files with 169 additions and 204 deletions
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22
src/backend/access/gist/gistxlog.c
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@@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/access/gist/gistxlog.c,v 1.18 2006/05/19 11:10:25 teodor Exp $
* $PostgreSQL: pgsql/src/backend/access/gist/gistxlog.c,v 1.19 2006/05/19 16:15:17 teodor Exp $
*-------------------------------------------------------------------------
*/
#include "postgres.h"
@@ -557,28 +557,16 @@ gistMakePageLayout(Buffer *buffers, int nbuffers) {
while( nbuffers-- > 0 ) {
Page page = BufferGetPage( buffers[ nbuffers ] );
IndexTuple idxtup;
OffsetNumber i;
char *ptr;
IndexTuple* vec;
int veclen;
resptr = (SplitedPageLayout*)palloc0( sizeof(SplitedPageLayout) );
resptr->block.blkno = BufferGetBlockNumber( buffers[ nbuffers ] );
resptr->block.num = PageGetMaxOffsetNumber( page );
for(i=FirstOffsetNumber; i<= PageGetMaxOffsetNumber( page ); i++) {
idxtup = (IndexTuple) PageGetItem(page, PageGetItemId(page, i));
resptr->lenlist += IndexTupleSize(idxtup);
}
resptr->list = (IndexTupleData*)palloc( resptr->lenlist );
ptr = (char*)(resptr->list);
for(i=FirstOffsetNumber; i<= PageGetMaxOffsetNumber( page ); i++) {
idxtup = (IndexTuple) PageGetItem(page, PageGetItemId(page, i));
memcpy( ptr, idxtup, IndexTupleSize(idxtup) );
ptr += IndexTupleSize(idxtup);
}
vec = gistextractpage( page, &veclen );
resptr->list = gistfillitupvec( vec, veclen, &(resptr->lenlist) );
resptr->next = res;
res = resptr;