Github user parthchandra commented on a diff in the pull request:
https://github.com/apache/drill/pull/600#discussion_r83284350
--- Diff:
exec/java-exec/src/test/java/org/apache/drill/exec/physical/impl/writer/TestParquetWriter.java
---
@@ -754,15 +764,45 @@ public void testImpalaParquetVarBinary_DictChange()
throws Exception {
compareParquetReadersColumnar("field_impala_ts",
"cp.`parquet/int96_dict_change.parquet`");
}
+ @Test
+ public void testImpalaParquetBinaryTimeStamp_DictChange() throws
Exception {
+ try {
+ test("alter session set %s = true",
ExecConstants.PARQUET_READER_INT96_AS_TIMESTAMP);
+ compareParquetReadersColumnar("field_impala_ts",
"cp.`parquet/int96_dict_change.parquet`");
--- End diff --
This is not a good enough test. Both the baseline and test case queries
will use the getDateTimeValueFromBinary method and if there is a bug in that
method, the test will still pass as both will produce the same incorrect value.
Better to compare with the actual baseline value in the file.
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