mao-liu commented on code in PR #767:
URL: https://github.com/apache/incubator-xtable/pull/767#discussion_r2685426062


##########
xtable-core/src/test/java/org/apache/xtable/paimon/TestPaimonDataFileExtractor.java:
##########
@@ -250,32 +236,19 @@ private void createUnpartitionedTable() {
         (TestPaimonTable)
             TestPaimonTable.createTable("test_table", null, tempDir, new 
Configuration(), false);
     paimonTable = testTable.getPaimonTable();
-    testSchema =
-        InternalSchema.builder().build(); // empty schema won't matter for 
non-partitioned tables
   }
 
   private void createPartitionedTable() {
     testTable =
         (TestPaimonTable)
             TestPaimonTable.createTable("test_table", "level", tempDir, new 
Configuration(), false);
     paimonTable = testTable.getPaimonTable();
-
-    // just the partition field matters for this test

Review Comment:
   The previous tests did not accurately represent the schema of the test 
tables - the tables had certain columns, but the "testSchema" objects were 
empty.
   
   The stats extractor sometimes need to rely on the schema to be able to parse 
binary stats data from Paimon metadata, hence the change to extract the schema 
properly



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