Reply To: LOAD vs OVERWRITE INSERT PRODUCE DIFFERENT TABLE SIZE!

Hi again,

I just run the command on cloudera…and here are the statistics

item (with LOAD):

33 Table Type: MANAGED_TABLE NULL
34 Table Parameters: NULL NULL
35 COLUMN_STATS_ACCURATE true
36 numFiles 1
37 numRows 0
38 rawDataSize 0
39 totalSize 28855325
40 transient_lastDdlTime 1427988576
41 NULL NULL
42 # Storage Information NULL NULL
43 SerDe Library: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe NULL
44 InputFormat: org.apache.hadoop.mapred.TextInputFormat NULL
45 OutputFormat: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat NULL
46 Compressed: No NULL

item2 (with INSERT OVERWRITE):

33 Table Type: MANAGED_TABLE NULL
34 Table Parameters: NULL NULL
35 COLUMN_STATS_ACCURATE true
36 numFiles 1
37 numRows 102000
38 rawDataSize 52058005
39 totalSize 52160005
40 transient_lastDdlTime 1427990208
41 NULL NULL
42 # Storage Information NULL NULL
43 SerDe Library: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe NULL
44 InputFormat: org.apache.hadoop.mapred.TextInputFormat NULL
45 OutputFormat: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat NULL
46 Compressed: No NULL

And now I don’t understand why the number of rows is 0 for item. When I query there are 102000 rows