Github user arina-ielchiieva commented on the issue: https://github.com/apache/drill/pull/889 @weijietong regarding the unit test, I have tried to reproduce the problem and written the following unit test: ``` @Test public void test() throws Exception { FileSystem fs = null; try { fs = FileSystem.get(new Configuration()); // create table with partition pruning test("use dfs_test.tmp"); String tableName = "table_with_pruning"; Path dataFile = new Path(TestTools.getWorkingPath(),"src/test/resources/parquet/alltypes_required.parquet"); test("create table %s partition by (col_int) as select * from dfs.`%s`", tableName, dataFile); // generate metadata test("refresh table metadata `%s`", tableName); // execute query String query = String.format("select count(distinct col_int), count(distinct col_chr) from `%s` where col_int = 45436", tableName); test(query); } finally { if (fs != null) { fs.close(); } } } ``` `AbstractGroupScan.getScanStats` method returns one row but it does not fail. Can you please take a look?
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