Heikki.I have idea. when i begining vacuum i must create structure like hash table. And the first action i fill this hash table.in code this look like:for( blkno = ..; all pages; blkno++) { if(! gistPageIsLeaf(blkno)) { for( all tuples in blkno ) { hash[ blkno that is referenced by the
On 09/11/2014 12:16 PM, Костя Кузнецов wrote:
After discussion of gist seaq access in vaccum there are 2 issue:
Heikki says :
Vacuum needs to memorize the current NSN when it begins
1) how i may getting corect NSN.
The "current NSN" is just current WAL insert location, so
GetXLogInsertRecPtr()
After discussion of gist seaq access in vaccum there are 2 issue: Heikki says :Vacuum needs to memorize the current NSN when it begins1) how i may getting corect NSN. Also i must setting F_DELETED flag on empty page and to clean parent from link on deleted_pages2) how i may getting parent of page f
