mcvsubbu commented on a change in pull request #8036:
URL: https://github.com/apache/pinot/pull/8036#discussion_r839056621



##########
File path: compatibility-verifier/sample-test-suite/post-server-rollback.yaml
##########
@@ -44,3 +58,14 @@ operations:
     description: Run query on FeatureTest2 using SQL
     queryFileName: queries/feature-test-2-sql-realtime.queries
     expectedResultsFileName: query-results/feature-test-2-sql-realtime.results
+  - type: queryOp
+    description: Run query on FeatureTest3 using SQL
+    queryFileName: queries/feature-test-3-sql-realtime.queries
+    expectedResultsFileName: query-results/feature-test-3-sql-realtime.results
+    shouldCompareNumEntriesScannedInFilter: true

Review comment:
       we should not need these additional fields anymore right?

##########
File path: 
pinot-compatibility-verifier/src/main/java/org/apache/pinot/compat/QueryOp.java
##########
@@ -72,16 +75,44 @@ public void setExpectedResultsFileName(String 
expectedResultsFileName) {
     _expectedResultsFileName = expectedResultsFileName;
   }
 
+  public Boolean getShouldCompareNumEntriesScannedInFilter() {
+    return _shouldCompareNumEntriesScannedInFilter;
+  }
+
+  public void setShouldCompareNumEntriesScannedInFilter(Boolean 
shouldCompareNumEntriesScannedInFilter) {
+    _shouldCompareNumEntriesScannedInFilter = 
shouldCompareNumEntriesScannedInFilter;
+  }
+
+  public Boolean getShouldCompareNumConsumingSegmentsQueried() {
+    return _shouldCompareNumConsumingSegmentsQueried;
+  }
+
+  public void setShouldCompareNumConsumingSegmentsQueried(boolean 
shouldCompareNumConsumingSegmentsQueried) {
+    _shouldCompareNumConsumingSegmentsQueried = 
shouldCompareNumConsumingSegmentsQueried;
+  }
+
+  public Boolean getShouldRunAllGenerations() {
+    return _shouldRunAllGenerations;
+  }
+
+  public void setShouldRunAllGenerations(Boolean shouldRunAllGenerations) {
+    _shouldRunAllGenerations = shouldRunAllGenerations;
+  }
+
   @Override
   boolean runOp(int generationNumber) {
     System.out.println("Verifying queries in " + _queryFileName + " against 
results in " + _expectedResultsFileName);
     try {
-      for (int i = 1; i <= generationNumber; i++) {
-        if (!verifyQueries(i)) {
-          return false;
+      if (getShouldRunAllGenerations()) {

Review comment:
       I don't understand why we should not be running all generations. 
   
   If we delete and create the table everytime, then it need not be added in 
compatibility test. The whole idea of compatibility testing is that we can work 
with tables in which data was added in previous versions, or, while 
downgrading, the data was added in new versions.

##########
File path: compatibility-verifier/sample-test-suite/post-server-rollback.yaml
##########
@@ -44,3 +58,14 @@ operations:
     description: Run query on FeatureTest2 using SQL
     queryFileName: queries/feature-test-2-sql-realtime.queries
     expectedResultsFileName: query-results/feature-test-2-sql-realtime.results
+  - type: queryOp
+    description: Run query on FeatureTest3 using SQL
+    queryFileName: queries/feature-test-3-sql-realtime.queries
+    expectedResultsFileName: query-results/feature-test-3-sql-realtime.results
+    shouldCompareNumEntriesScannedInFilter: true
+    shouldCompareNumConsumingSegmentsQueried: true

Review comment:
       Why do we need this?

##########
File path: compatibility-verifier/sample-test-suite/post-broker-rollback.yaml
##########
@@ -20,6 +20,12 @@
 # Operations to be done.
 description: Operations to be run after broker rollback
 operations:
+  - type: tableOp

Review comment:
       We can set the numEntriesscanned to a high value (my recent PR)
   
   Also, I believe that we execute queries for a specific generation number, so 
at any one run, only one gen num worth of rows will be considered.

##########
File path: compatibility-verifier/sample-test-suite/config/dataGenerator.py
##########
@@ -0,0 +1,90 @@
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+
+import random
+import csv
+import string
+
+class DataGenerator:

Review comment:
       I think this is used to generate featuretest3? Is it one time (I hope) 
or on each run (in which case I have more questions)? Either way, please add a 
comment on this file. Thanks.




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