Empty result in query after IUD delete operation

1. drop table if exists t1
2. create table t1 (c1 int,c2 string) STORED BY 'org.apache.carbondata.format' TBLPROPERTIES('table_blocksize'='1', 'dictionary_exclude'='c2')
3. LOAD DATA LOCAL INPATH 'test.csv' INTO table t1 options('fileheader'='c1,c2')
4. run delete command which should delete a whole block
5. Run clean file operation.
6. select from t1.

NOTE: Disable mergeindex property