HBASE-29195 Get Column value with timestamp is giving wrong result as not found (#6814)

Signed-off-by: Duo Zhang <[email protected]>

Author: chandrasekhar-188k

hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/RowResultGenerator.java

@@ -56,7 +56,12 @@ public RowResultGenerator(final String tableName, final RowSpec rowspec, final F
           }
         }
       }
-      get.setTimeRange(rowspec.getStartTime(), rowspec.getEndTime());
+      if (rowspec.isPartialTimeRange()) {
+        get.setTimestamp(rowspec.getTimestamp());
+      } else {
+        get.setTimeRange(rowspec.getStartTime(), rowspec.getEndTime());
+      }
+
       get.readVersions(rowspec.getMaxVersions());
       if (filter != null) {
         get.setFilter(filter);

hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/RowSpec.java

@@ -46,6 +46,7 @@ public class RowSpec {
   private long endTime = DEFAULT_END_TIMESTAMP;
   private int maxVersions = 1;
   private int maxValues = Integer.MAX_VALUE;
+  private boolean partialTimeRange;
 
   public RowSpec(String path) throws IllegalArgumentException {
     this(path, null);
@@ -216,6 +217,7 @@ private int parseTimestamp(final String path, int i) throws IllegalArgumentExcep
       endTime = time1;
     } else {
       endTime = time0;
+      partialTimeRange = true;
     }
     return i;
   }
@@ -426,4 +428,9 @@ public String toString() {
     result.append("}");
     return result.toString();
   }
+
+  public boolean isPartialTimeRange() {
+    return partialTimeRange;
+  }
+
 }

hbase-rest/src/main/java/org/apache/hadoop/hbase/rest/ScannerResultGenerator.java

@@ -91,7 +91,13 @@ public ScannerResultGenerator(final String tableName, final RowSpec rowspec, fin
           }
         }
       }
-      scan.setTimeRange(rowspec.getStartTime(), rowspec.getEndTime());
+
+      if (rowspec.isPartialTimeRange()) {
+        scan.setTimestamp(rowspec.getTimestamp());
+      } else {
+        scan.setTimeRange(rowspec.getStartTime(), rowspec.getEndTime());
+      }
+
       scan.readVersions(rowspec.getMaxVersions());
       if (filter != null) {
         scan.setFilter(filter);