Code:
Detailed Table Information Table(tableName:a1, dbName:default, owner:eedc_hdp_s_d-itm-e, createTime:1520514151, lastAccessTime:0, retention:0, sd:StorageDescriptor(cols:[FieldSchema(name:columna, type:string, comment:this is first column which has comment), FieldSchema(name:columnb, type:int, comment:null)], location:hdfs://DBDP-Dev/apps/hive/warehouse/a1, inputFormatLinuxrg.apache.hadoop.mapred.TextInputFormat, outputFormatLinuxrg.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat, compressed:false, numBuckets:-1, serdeInfo:SerDeInfo(name:null, serializationLibLinuxrg.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, parameters:{serialization.format=1}), bucketCols:[], sortCols:[], parameters:{}, skewedInfo:SkewedInfo(skewedColNames:[], skewedColValues:[], skewedColValueLocationMaps:{}), storedAsSubDirectories:false), partitionKeys:[], parameters:{totalSize=0, rawDataSize=0, numRows=0, COLUMN_STATS_ACCURATE={"BASIC_STATS":"true"}, numFiles=0, transient_lastDdlTime=1520514151}, viewOriginalText:null, viewExpandedText:null, tableType:MANAGED_TABLE)
Detailed Table Information Table(tableName:a2, dbName:default,
Testing filler FieldSchema(name:columnA, type:string, comment:null)
Detailed Table Information Table(tableName:a2, dbName:default, owner:eedc_hdp_s_d-itm-e, createTime:1520514151, lastAccessTime:0, retention:0, sd:StorageDescriptor(cols:[FieldSchema(name:columnA, type:string, comment:null), FieldSchema(name:columnB, type:int, comment:null)], location:hdfs://DBDP-Dev/apps/hive/warehouse/a1, inputFormatLinuxrg.apache.hadoop.mapred.TextInputFormat, outputFormatLinuxrg.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat, compressed:false, numBuckets:-1, serdeInfo:SerDeInfo(name:null, serializationLibLinuxrg.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, parameters:{serialization.format=1}), bucketCols:[], sortCols:[], parameters:{}, skewedInfo:SkewedInfo(skewedColNames:[], skewedColValues:[], skewedColValueLocationMaps:{}), storedAsSubDirectories:false), partitionKeys:[], parameters:{totalSize=0, rawDataSize=0, numRows=0, COLUMN_STATS_ACCURATE={"BASIC_STATS":"true"}, numFiles=0, transient_lastDdlTime=1520514151}, viewOriginalText:null, viewExpandedText:null, tableType:MANAGED_TABLE)