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This commit is contained in:
Andy Arthur
2022-02-21 11:16:56 -08:00
parent b0dab2cf79
commit c4a13539ff
1 changed files with 4 additions and 7 deletions
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11
go/store/val/tuple.go
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@@ -150,9 +150,8 @@ func (tup Tuple) GetField(i int) (field []byte) {
return
}
// GetManyFields returns the fields specified in |indexes|. It assumes
// field indexes are provided in ascending order. It populates field data
// into |slices| to avoid allocating.
// GetManyFields takes a sorted slice of ordinals |indexes| and returns the requested
// tuple fields. It populates field data into |slices| to avoid allocating.
func (tup Tuple) GetManyFields(indexes []int, slices [][]byte) [][]byte {
return sliceManyFields(tup, indexes, slices)
}
@@ -193,8 +192,7 @@ func sliceManyFields(tuple Tuple, indexes []int, slices [][]byte) [][]byte {
}
subset := slices
// we don't have an explicit |stop| offset
// for the last field
// we don't have a "stop" offset for the last field
n := len(slices)
if indexes[n-1] == cnt-1 {
o := readUint16(offs[len(offs)-2:])
@@ -203,8 +201,7 @@ func sliceManyFields(tuple Tuple, indexes []int, slices [][]byte) [][]byte {
subset = subset[:n-1]
}
// we don't have an explicit |start| offset
// for the first field
// we don't have a "start" offset for the first field
if indexes[0] == 0 {
o := readUint16(offs[:2])
slices[0] = data[:o]