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Aliaksandr Valialkin 2024-05-13 22:30:03 +02:00
parent 69a6543609
commit aa21c9492e
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7
lib/logstorage/block_result.go
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@ -261,7 +261,14 @@ func (br *blockResult) mustInit(bs *blockSearch, bm *bitmap) {
}
// Initialize timestamps, since they are required for all the further work with br.
if !slices.Contains(bs.bsw.so.neededColumnNames, "_time") || slices.Contains(bs.bsw.so.unneededColumnNames, "_time") {
// The fastest path - _time column wasn't requested, so it is enough to initialize br.timestamps with zeroes.
rowsLen := bm.onesCount()
br.timestamps = fastnum.AppendInt64Zeros(br.timestamps[:0], rowsLen)
return
}
// Slow path - the _time column is requested, so we need to initialize br.timestamps with real timestamps.
srcTimestamps := bs.getTimestamps()
if bm.areAllBitsSet() {
// Fast path - all the rows in the block are selected, so copy all the timestamps without any filtering.