Github user ramkrish86 commented on a diff in the pull request:
https://github.com/apache/phoenix/pull/8#discussion_r16699399
--- Diff:
phoenix-core/src/main/java/org/apache/phoenix/schema/stat/PTableStats.java ---
@@ -22,23 +22,116 @@
import org.apache.hadoop.hbase.HRegionInfo;
-/**
- * Interface for Phoenix table statistics. Statistics is collected on the
server
- * side and can be used for various purpose like splitting region for
scanning, etc.
- *
- * The table is defined on the client side, but it is populated on the
server side. The client
- * should not populate any data to the statistics object.
+/*
+ * The table is defined on the client side, but it is populated on the
server side. The client should not populate any data to the
+ * statistics object.
*/
public interface PTableStats {
/**
- * Given the region info, returns an array of bytes that is the
current estimate of key
- * distribution inside that region. The keys should split that region
into equal chunks.
+ * Given the region info, returns an array of bytes that is the
current estimate of key distribution inside that region. The keys should
+ * split that region into equal chunks.
*
* @param region
* @return array of keys
*/
- byte[][] getRegionGuidePosts(HRegionInfo region);
+ byte[] getRegionGuidePostsOfARegion(HRegionInfo region);
+
+ /**
+ * Returns a map of with key as the regions of the table and the guide
posts collected as byte[] created from VARBINARY ARRAY
+ *
+ * @return map of region and the guide posts as VARBINARY array
+ */
+ Map<String, byte[]> getGuidePosts();
+
+ /**
+ * Returns the max key of a region
+ *
+ * @param region
+ * @return maxkey of a region
+ */
+ byte[] getMaxKeyOfARegion(HRegionInfo region);
+
+ /**
+ * Returns the min key of a region
+ *
+ * @param region
+ * @return min key of a region
+ */
+ byte[] getMinKeyOfARegion(HRegionInfo region);
+
+ /**
+ * Returns a map with key as the regions of the table and the max key
in that region
+ *
+ * @return
+ */
+ Map<String, byte[]> getMaxKey();
+
+ /**
+ * Returns a map with key as the regions of the table and the min key
in that region
+ *
+ * @return
+ */
+ Map<String, byte[]> getMinKey();
+
+ /**
+ * Set the min key of a region
+ *
+ * @param region
+ * @param minKey
+ * @param offset
+ * @param length
+ */
+ void setMinKey(HRegionInfo region, byte[] minKey, int offset, int
length);
+
+ /**
+ * Set the min key of the region. Here the region name is represented
as the Bytes.toBytes(region.getRegionNameAsString).
--- End diff --
I think it may be possible. Let me see.
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