1a int 2b int 3insertdate string 4 5# Partition Information 6# col_name data_type comment 7 8insertdate string 9 10Detailed Table Information Table(tableName:alter2, dbName:alter2_db, owner:marmbrus, createTime:1413871629, lastAccessTime:0, retention:0, sd:StorageDescriptor(cols:[FieldSchema(name:a, type:int, comment:null), FieldSchema(name:b, type:int, comment:null), FieldSchema(name:insertdate, type:string, comment:null)], location:file:/private/var/folders/36/cjkbrr953xg2p_krwrmn8h_r0000gn/T/sparkHiveWarehouse1201055597819413730/alter2_db.db/alter2, inputFormat:org.apache.hadoop.mapred.TextInputFormat, outputFormat:org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat, compressed:false, numBuckets:-1, serdeInfo:SerDeInfo(name:null, serializationLib:org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, parameters:{serialization.format=1}), bucketCols:[], sortCols:[], parameters:{}, skewedInfo:SkewedInfo(skewedColNames:[], skewedColValues:[], skewedColValueLocationMaps:{}), storedAsSubDirectories:false), partitionKeys:[FieldSchema(name:insertdate, type:string, comment:null)], parameters:{EXTERNAL=TRUE, transient_lastDdlTime=1413871629}, viewOriginalText:null, viewExpandedText:null, tableType:EXTERNAL_TABLE) 11