Commit14840f3

Nikita Glukhov

committed

Add ginPostingListDecodeOneSegment()

1 parent00d3822 commit14840f3Copy full SHA for 14840f3

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+28

-0

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src
- backend/access/gin
  - ginpostinglist.c
- include/access
  - gin_private.h

+28

-0

lines changed

Lines changed: 27 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -288,6 +288,33 @@ ginPostingListDecode(GinPostingList plist, int ndecoded)`
`288`	`288`	`ndecoded);`
`289`	`289`	`}`
`290`	`290`
	`291`	`+int`
	`292`	`+ginPostingListDecodeOneSegment(GinPostingList*segment,ItemPointerresult)`
	`293`	`+{`
	`294`	`+unsignedchar*ptr;`
	`295`	`+unsignedchar*endptr;`
	`296`	`+uint64val;`
	`297`	`+intndecoded=0;`
	`298`	`+`
	`299`	`+/* copy the first item */`
	`300`	`+Assert(OffsetNumberIsValid(ItemPointerGetOffsetNumber(&segment->first)));`
	`301`	`+result[ndecoded]=segment->first;`
	`302`	`+ndecoded++;`
	`303`	`+`
	`304`	`+val=itemptr_to_uint64(&segment->first);`
	`305`	`+ptr=segment->bytes;`
	`306`	`+endptr=segment->bytes+segment->nbytes;`
	`307`	`+`
	`308`	`+while (ptr<endptr)`
	`309`	`+{`
	`310`	`+val+=decode_varbyte(&ptr);`
	`311`	`+uint64_to_itemptr(val,&result[ndecoded]);`
	`312`	`+ndecoded++;`
	`313`	`+}`
	`314`	`+`
	`315`	`+returnndecoded;`
	`316`	`+}`
	`317`	`+`
`291`	`318`	`/*`
`292`	`319`	`* Decode multiple posting list segments into an array of item pointers.`
`293`	`320`	`* The number of items is returned in *ndecoded_out. The segments are stored`

Lines changed: 1 addition & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -472,6 +472,7 @@ extern GinPostingList *ginCompressPostingList(const ItemPointer ipd, int nipd,`
`472`	`472`	`externintginPostingListDecodeAllSegmentsToTbm(GinPostingListptr,inttotalsize,TIDBitmaptbm);`
`473`	`473`
`474`	`474`	`externItemPointerginPostingListDecodeAllSegments(GinPostingListptr,intlen,intndecoded);`
	`475`	`+externintginPostingListDecodeOneSegment(GinPostingList*segment,ItemPointerresult);`
`475`	`476`	`externItemPointerginPostingListDecode(GinPostingListptr,intndecoded);`
`476`	`477`	`externItemPointerginMergeItemPointers(ItemPointerData*a,uint32na,`
`477`	`478`	`ItemPointerData*b,uint32nb,`

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