twdsilva commented on a change in pull request #485: Add common utility
function ScanUtil.splityKeyRangesByBoundaries()
URL: https://github.com/apache/phoenix/pull/485#discussion_r276833880
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File path: phoenix-core/src/main/java/org/apache/phoenix/util/ScanUtil.java
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@@ -953,4 +953,85 @@ public static int getClientVersion(Scan scan) {
public static void setClientVersion(Scan scan, int version) {
scan.setAttribute(BaseScannerRegionObserver.CLIENT_VERSION,
Bytes.toBytes(version));
}
+
+ /**
+ * Split the key ranges into multiple groups along the given boundaries
+ *
+ * @param boundaries
+ * The boundaries is a byte[] list like "b0, b1, ..., bn" which forms
+ * space (UNBOUND, b0), [b0, b1), ..., [bn, UNBOUND). Every boundary
+ * can't be null or empty.
+ * @param keyRanges
+ * The key ranges to split along the given boundaries. Coalesced.
+ * @return
+ * List<Pair<RangeIndex, Query Key Range List in this range>>.
Review comment:
should this be List<Pair<BoundaryIndex, Query Key Range List in this
boundary>> ?
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