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scorch zap reuse roaring Bitmap in postings lists

This commit is contained in:
Steve Yen 2018-03-11 20:13:31 -07:00
parent cad88096ca
commit b1f3969521
2 changed files with 18 additions and 2 deletions
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12
index/scorch/segment/zap/dict.go
View File

@ -68,7 +68,19 @@ func (d *Dictionary) postingsListInit(rv *PostingsList, except *roaring.Bitmap)
if rv == nil {
rv = &PostingsList{}
} else {
postings := rv.postings
if postings != nil {
postings.Clear()
}
locBitmap := rv.locBitmap
if locBitmap != nil {
locBitmap.Clear()
}
*rv = PostingsList{} // clear the struct
rv.postings = postings
rv.locBitmap = locBitmap
}
rv.sb = d.sb
rv.except = except

8
index/scorch/segment/zap/posting.go
View File

@ -266,7 +266,9 @@ func (rv *PostingsList) read(postingsOffset uint64, d *Dictionary) error {
locRoaringBytes := d.sb.mem[locBitmapOffset+uint64(read) : locBitmapOffset+uint64(read)+locBitmapLen]
rv.locBitmap = roaring.NewBitmap()
if rv.locBitmap == nil {
rv.locBitmap = roaring.NewBitmap()
}
_, err := rv.locBitmap.FromBuffer(locRoaringBytes)
if err != nil {
return fmt.Errorf("error loading roaring bitmap of locations with hits: %v", err)
@ -278,7 +280,9 @@ func (rv *PostingsList) read(postingsOffset uint64, d *Dictionary) error {
roaringBytes := d.sb.mem[postingsOffset+n : postingsOffset+n+postingsLen]
rv.postings = roaring.NewBitmap()
if rv.postings == nil {
rv.postings = roaring.NewBitmap()
}
_, err = rv.postings.FromBuffer(roaringBytes)
if err != nil {
return fmt.Errorf("error loading roaring bitmap: %v", err)