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From chrajeshbabu <...@git.apache.org>
Subject [GitHub] phoenix pull request: PHOENIX-2628 Ensure split when iterating thr...
Date Wed, 06 Apr 2016 01:35:13 GMT
Github user chrajeshbabu commented on a diff in the pull request:

    https://github.com/apache/phoenix/pull/156#discussion_r58640818
  
    --- Diff: phoenix-core/src/main/java/org/apache/phoenix/iterate/BaseResultIterators.java
---
    @@ -556,35 +564,55 @@ private static String toString(List<byte[]> gps) {
                     } else {
                         endKey = regionBoundaries.get(regionIndex);
                     }
    -                HRegionLocation regionLocation = regionLocations.get(regionIndex);
    -                if (isLocalIndex) {
    -                    HRegionInfo regionInfo = regionLocation.getRegionInfo();
    -                    endRegionKey = regionInfo.getEndKey();
    -                    keyOffset = ScanUtil.getRowKeyOffset(regionInfo.getStartKey(), endRegionKey);
    -                }
    -                try {
    -                    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++;
    -                    }
    -                } catch (EOFException e) {}
    -                Scan newScan = scanRanges.intersectScan(scan, currentKeyBytes, endKey,
keyOffset, true);
    -                if (isLocalIndex) {
    -                    if (newScan != null) {
    -                        newScan.setAttribute(EXPECTED_UPPER_REGION_KEY, endRegionKey);
    -                    } else if (!scans.isEmpty()) {
    -                        scans.get(scans.size()-1).setAttribute(EXPECTED_UPPER_REGION_KEY,
endRegionKey);
    -                    }
    -                }
    -                scans = addNewScan(parallelScans, scans, newScan, endKey, true, regionLocation);
    -                currentKeyBytes = endKey;
    +                if (Bytes.compareTo(scan.getStartRow(), context.getScan().getStartRow())
!= 0
    +                     || Bytes.compareTo(scan.getStopRow(), context.getScan().getStopRow())
!= 0) {
    --- End diff --
    
    If I move creating parallel scans for this special case I need to duplicate lot of code.
That's why I have added special case as part of creating existing parallel scans only.


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