Remove partition filters in DLO lib/app (#171)

## Summary
Generating DLO strategy is relatively cheap, and it's useful to have it
on non-partitioned tables as well in order to evaluate if it's worth
optimizing the table writer.

## Changes

- [ ] Client-facing API Changes
- [ ] Internal API Changes
- [x] Bug Fixes
- [ ] New Features
- [ ] Performance Improvements
- [ ] Code Style
- [ ] Refactoring
- [ ] Documentation
- [ ] Tests

For all the boxes checked, please include additional details of the
changes made in this pull request.

## Testing Done
<!--- Check any relevant boxes with "x" -->

- [ ] Manually Tested on local docker setup. Please include commands
ran, and their output.
- [ ] Added new tests for the changes made.
- [x] Updated existing tests to reflect the changes made.
- [ ] No tests added or updated. Please explain why. If unsure, please
feel free to ask for help.
- [ ] Some other form of testing like staging or soak time in
production. Please explain.

For all the boxes checked, include a detailed description of the testing
done for the changes made in this pull request.

# Additional Information

- [ ] Breaking Changes
- [ ] Deprecations
- [ ] Large PR broken into smaller PRs, and PR plan linked in the
description.

For all the boxes checked, include additional details of the changes
made in this pull request.

apps/spark/src/main/java/com/linkedin/openhouse/jobs/client/TablesClient.java

@@ -99,10 +99,7 @@ protected GetTableResponseBody getTable(TableMetadata tableMetadata) {
    */
   public boolean canRunDataLayoutStrategyGeneration(TableMetadata tableMetadata) {
     GetTableResponseBody response = getTable(tableMetadata);
-    return response != null
-        && checkCreationTimeEligibility(response)
-        && isPrimaryTable(response)
-        && (response.getTimePartitioning() != null || response.getClustering() != null);
+    return response != null && checkCreationTimeEligibility(response) && isPrimaryTable(response);
   }
 
   /**

apps/spark/src/test/java/com/linkedin/openhouse/jobs/clients/TablesClientTest.java

@@ -430,7 +430,7 @@ void testCanRunDataLayoutStrategyGeneration() {
     Assertions.assertTrue(
         client.canRunDataLayoutStrategyGeneration(
             TableMetadata.builder().dbName(testDbName).tableName(testTableNameClustered).build()));
-    Assertions.assertFalse(
+    Assertions.assertTrue(
         client.canRunDataLayoutStrategyGeneration(
             TableMetadata.builder().dbName(testDbName).tableName(testTableName).build()));
     Assertions.assertFalse(

libs/datalayout/src/main/java/com/linkedin/openhouse/datalayout/generator/OpenHouseDataLayoutStrategyGenerator.java

@@ -41,10 +41,6 @@ public class OpenHouseDataLayoutStrategyGenerator implements DataLayoutStrategyG
    */
   @Override
   public List<DataLayoutStrategy> generate() {
-    // skip single partition and non-partitioned tables
-    if (tablePartitionStats.get().count() <= 1) {
-      return Collections.emptyList();
-    }
     return Collections.singletonList(generateCompactionStrategy());
   }
 

libs/datalayout/src/test/java/com/linkedin/openhouse/datalayout/e2e/IntegrationTest.java

@@ -55,7 +55,11 @@ public void testCompactionStrategyGenerationNonPartitioned() throws Exception {
               .tablePartitionStats(tablePartitionStats)
               .build();
       List<DataLayoutStrategy> strategies = strategyGenerator.generate();
-      Assertions.assertEquals(0, strategies.size());
+      Assertions.assertEquals(1, strategies.size());
+      StrategiesDao dao = StrategiesDaoTableProps.builder().spark(spark).build();
+      dao.save(testTable, strategies);
+      List<DataLayoutStrategy> retrievedStrategies = dao.load(testTable);
+      Assertions.assertEquals(strategies, retrievedStrategies);
     }
   }