resolve comments

Author: nareshz

google-cloud-spanner/src/main/java/com/google/cloud/spanner/ReadContext.java

@@ -33,7 +33,11 @@ public interface ReadContext extends AutoCloseable {
   enum QueryAnalyzeMode {
     /** Retrieves only the query plan information. No result data is returned. */
     PLAN,
-    /** Retrieves both query plan and query execution statistics along with the result data. */
+    /**
+     * Retrieves the query plan, overall execution statistics, operator level execution statistics
+     * along with the result data. This has a performance overhead compared to the other modes. It
+     * isn't recommended to use this mode for production traffic.
+     */
     PROFILE,
     /**
      * Retrieves the overall (but not operator-level) execution statistics along with the result

google-cloud-spanner/src/test/java/com/google/cloud/spanner/GrpcResultSetTest.java

@@ -494,7 +494,7 @@ public void withStatsResult() {
     assertThat(resultSet.next()).isTrue();
     assertThat(resultSet.next()).isFalse();
     ResultSetStats receivedStats = resultSet.getStats();
-    assertThat(stats).isEqualTo(receivedStats);
+    assertThat(receivedStats).isEqualTo(stats);
     resultSet.close();
   }
 

google-cloud-spanner/src/test/java/com/google/cloud/spanner/connection/it/ITReadWriteAutocommitSpannerTest.java

@@ -183,7 +183,7 @@ public void test05_BatchUpdateWithException() {
   @Test
   public void test06_AnalyzeUpdate() {
     assumeFalse(
-        "Emulator does not support PLAN, PROFILE, WITH_STATS AND WITH_PLAN_AND_STATS",
+        "Emulator does not support PLAN, PROFILE, WITH_STATS, AND WITH_PLAN_AND_STATS",
         EmulatorSpannerHelper.isUsingEmulator());
 
     // PLAN should not execute the update.