[PHOENIX-2714] Correct byte estimate in BaseResultIterators and expose as interface

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 4.7.0
• Fix Version/s: 4.8.0
• Labels: statistics
• Assignee: Wei Xue
• Reporter: Wei Xue
• Created: 25/Feb/16 01:40
• Updated: 11/Aug/16 08:29
• Resolved: 03/Apr/16 15:43

Description

The bytes are accumulated even if the range intersect is empty (produces a null scan).

                while (guideIndex < gpsSize && (currentGuidePost.compareTo(endKey) <= 0 || endKey.length == 0)) {
                    Scan newScan = scanRanges.intersectScan(scan, currentKeyBytes, currentGuidePostBytes, keyOffset,
                            false);
                    estimatedRows += gps.getRowCounts().get(guideIndex);
                    estimatedSize += gps.getByteCounts().get(guideIndex);
                    scans = addNewScan(parallelScans, scans, newScan, currentGuidePostBytes, false, regionLocation);
                    currentKeyBytes = currentGuidePost.copyBytes();
                    currentGuidePost = PrefixByteCodec.decode(decoder, input);
                    currentGuidePostBytes = currentGuidePost.copyBytes();
                    guideIndex++;
                }