public void dropTable(String dbName, String tableName, boolean deleteData,
      boolean ignoreUnknownTab) throws HiveException {
    dropTable(dbName, tableName, deleteData, ignoreUnknownTab, false);
  }
Drops the table.

@param dbName
@param tableName
@param deleteData
         deletes the underlying data along with metadata
@param ignoreUnknownTab
         an exception is thrown if this is false and the table doesn't exist
@throws HiveException
ql/src/java/org/apache/hadoop/hive/ql/metadata/Hive.java