BinShi-SecularBird commented on a change in pull request #463: Phoenix stats
Initial Commit
URL: https://github.com/apache/phoenix/pull/463#discussion_r265824643
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File path:
phoenix-core/src/main/java/org/apache/phoenix/compile/ScanRanges.java
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@@ -694,4 +694,138 @@ public TimeRange getRowTimestampRange() {
return rowTimestampRange;
}
+ public List<KeyRange> getRowKeyRanges(){
+
+ //If its scanRanges are everything or nothing we short circuit and
leave
+ //As schema is not filled in
+ if (this.equals(ScanRanges.EVERYTHING)) {
+ return Lists.newArrayList(KeyRange.EVERYTHING_RANGE);
+ }
+ if (this.equals(ScanRanges.NOTHING)) {
+ return Lists.newArrayList(KeyRange.EMPTY_RANGE);
+ }
+
+ List<KeyRange> queryRowKeyRanges =
Lists.newArrayListWithExpectedSize(this.ranges.size());
+
+ //Point lookups are stored in the first range as a whole and already a
rowkey
+ // see ScanRanges.getPointLookupKeyIterator
+ if (this.isPointLookup()) {
+ queryRowKeyRanges.addAll(this.getRanges().get(0));
+ } else {
+
+ //If scanRanges.ranges has no information then should be in the
scanRanges.scanRange
+ if (this.getRanges().size() == 0) {
+ queryRowKeyRanges.add(this.getScanRange());
+ } else { //We have a composite key need the row key from the
combination
+
+ //Many simple cases where there is not multiple ranges the
calculated scan ranges
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