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Commit4ed6fc7

Artur Zakirov

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Fix adjust pd_lower

1 parent3b411a5 commit4ed6fc7Copy full SHA for 4ed6fc7

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+20

-5

lines changed

rumdatapage.c

1 file changed

+20

-5

lines changed

`‎rumdatapage.c`

Lines changed: 20 additions & 5 deletions

Original file line number	Diff line number	Diff line change
`@@ -613,8 +613,13 @@ RumPageDeletePostingItem(Page page, OffsetNumber offset)`
`613`	`613`	`Assert(offset >=FirstOffsetNumber&&offset <=maxoff);`
`614`	`614`
`615`	`615`	`if (offset!=maxoff)`
`616`		`-memmove(RumDataPageGetItem(page,offset),RumDataPageGetItem(page,offset+1),`
`617`		`-sizeof(PostingItem)* (maxoff-offset));`
	`616`	`+{`
	`617`	`+char*dstptr=RumDataPageGetItem(page,offset),`
	`618`	`+*sourceptr=RumDataPageGetItem(page,offset+1);`
	`619`	`+memmove(dstptr,sourceptr,sizeof(PostingItem)* (maxoff-offset));`
	`620`	`+/* Adjust pd_lower */`
	`621`	`+((PageHeader)page)->pd_lower=sourceptr-page;`
	`622`	`+}`
`618`	`623`
`619`	`624`	`RumPageGetOpaque(page)->maxoff--;`
`620`	`625`	`}`
`@@ -1090,11 +1095,21 @@ dataSplitPageInternal(RumBtree btree, Buffer lbuf, Buffer rbuf,`
`1090`	`1095`	`RumInitPage(rPage,RumPageGetOpaque(newlPage)->flags,pageSize);`
`1091`	`1096`	`RumInitPage(newlPage,RumPageGetOpaque(rPage)->flags,pageSize);`
`1092`	`1097`
`1093`		`-memcpy(RumDataPageGetItem(newlPage,FirstOffsetNumber),vector,separator*sizeofitem);`
	`1098`	`+ptr=RumDataPageGetItem(newlPage,FirstOffsetNumber);`
	`1099`	`+memcpy(ptr,vector,separator*sizeofitem);`
`1094`	`1100`	`RumPageGetOpaque(newlPage)->maxoff=separator;`
`1095`		`-memcpy(RumDataPageGetItem(rPage,FirstOffsetNumber),`
`1096`		`-vector+separatorsizeofitem, (maxoff-separator)sizeofitem);`
	`1101`	`+/* Adjust pd_lower */`
	`1102`	`+((PageHeader)newlPage)->pd_lower= (ptr+separator*sizeofitem+1)-`
	`1103`	`+newlPage;`
	`1104`	`+`
	`1105`	`+ptr=RumDataPageGetItem(rPage,FirstOffsetNumber);`
	`1106`	`+memcpy(ptr,vector+separator*sizeofitem,`
	`1107`	`+ (maxoff-separator)*sizeofitem);`
`1097`	`1108`	`RumPageGetOpaque(rPage)->maxoff=maxoff-separator;`
	`1109`	`+/* Adjust pd_lower */`
	`1110`	`+((PageHeader)rPage)->pd_lower= (ptr+`
	`1111`	`+ (maxoff-separator)*sizeofitem+1)-`
	`1112`	`+rPage;`
`1098`	`1113`
`1099`	`1114`	`PostingItemSetBlockNumber(&(btree->pitem),BufferGetBlockNumber(lbuf));`
`1100`	`1115`	`if (RumPageIsLeaf(newlPage))`

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Commit4ed6fc7

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`‎rumdatapage.c`

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