marin-ma commented on code in PR #8593:
URL: https://github.com/apache/incubator-gluten/pull/8593#discussion_r1943102640


##########
gluten-ut/spark34/src/test/scala/org/apache/spark/sql/execution/datasources/parquet/GlutenParquetColumnIndexSuite.scala:
##########
@@ -38,7 +38,25 @@ class GlutenParquetColumnIndexSuite extends 
ParquetColumnIndexSuite with GlutenS
         "cast(id as float) as _5",
         "cast(id as double) as _6",
         "cast(id as decimal(20,0)) as _7",
-        "cast(cast(1618161925000 + id * 1000 * 60 * 60 * 24 as timestamp) as 
date) as _9"
+        "cast(cast(1618161925 + id * 60 * 60 * 24 as timestamp) as date) as _9"

Review Comment:
   Why do we need this change here? Is it because larger timestamp will 
overflow in Velox? Could add some comments like "// Change 1618161925000 to 
1618161925 because ... " for explanations?



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