miaojianxin
commented
4 years ago I have done some modify for rum， but it is imcomplete。 I modified like this： //mjx modify start //16-->32bit
define ItemPointerSetMax(p) \
ItemPointerSet((p), InvalidBlockNumber, (OffsetNumber)0xfffffffe)define ItemPointerIsMax(p) \
(RumItemPointerGetOffsetNumber(p) == (OffsetNumber)0xfffffffe && \
RumItemPointerGetBlockNumber(p) == InvalidBlockNumber)define ItemPointerSetLossyPage(p, b) \
ItemPointerSet((p), (b), (OffsetNumber)0xffffffff)define ItemPointerIsLossyPage(p) \
(RumItemPointerGetOffsetNumber(p) == (OffsetNumber)0xffffffff && \
RumItemPointerGetBlockNumber(p) != InvalidBlockNumber)//mjx modify end
/mjx modify start //16-->32bit
define RUM_TREE_POSTING ((OffsetNumber)0xffffffff)
//mjx modify end //mjx modify 16-->32 //#define ALT_ADD_INFO_NULL_FLAG (0x8000)
for some application, our pg code changed like this: the structuer ItemIdData changed, like this,
the lp_off,lp_len changed from 16 to 31. in one page, the item number of tuples and the length of the tuple changed.
typedef struct ItemIdData { uint64 lp_off:31, / offset to tuple (from start of page) / lp_flags:2, / state of item pointer, see below / lp_len:31; / byte length of tuple / } ItemIdData;
the OffsetNumber changed from 16 to 32. typedef uint32 OffsetNumber;
and we did some change for pg source in the other places , it has worked well.
when I use the rum code to pg, it core dump. i did some change in rum code, may be the modify i did is imcomplete， the rum with pg still core。 can you give me some advice how to modify the rum code for my change in pg ？ thank you