title: describe extended table in Hive
body: <p>I am storing the Table as a SequenceFile format and I am setting the below commands to enable Sequence with BLOCK Compression-</p>
  
  <pre><code>set mapred.output.compress=true;
  set mapred.output.compression.type=BLOCK;
  set mapred.output.compression.codec=org.apache.hadoop.io.compress.LzoCodec;
  </code></pre>
  
  <p>But when I tried viewing the tables like this-</p>
  
  <pre><code>describe extended lip_table
  </code></pre>
  
  <p>I got below information in which there is a field called <code>compressed</code> which is set as <code>false</code>, So that means my data doesn't got compressed by setting the above three commands?</p>
  
  <pre><code>Detailed Table Information      Table(tableName:lip_table, dbName:default, owner:uname, 
  createTime:1343931235, lastAccessTime:0, retention:0, sd:StorageDescriptor(cols:
  [FieldSchema(name:buyer_id, type:bigint, comment:null), FieldSchema(name:total_chkout, 
  type:bigint, comment:null), FieldSchema(name:total_errpds, type:bigint, comment:null)], 
  location:hdfs://ares-nn/apps/hdmi/uname/lip-data, 
  inputFormat:org.apache.hadoop.mapred.SequenceFileInputFormat, 
  outputFormat:org.apache.hadoop.hive.ql.io.HiveSequenceFileOutputFormat, 
  **compressed:false**, numBuckets:-1, serdeInfo:SerDeInfo(name:null, 
  serializationLib:org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, parameters:
  {serialization.format=   , field.delim=
  </code></pre>