Saving all output to "!!{outputDirectory}!!/udf_reverse.q.raw". Enter "record" with no arguments to stop it.
>>>  !run !!{qFileDirectory}!!/udf_reverse.q
>>>  DESCRIBE FUNCTION reverse;
'tab_name'
'reverse(str) - reverse str'
1 row selected 
>>>  DESCRIBE FUNCTION EXTENDED reverse;
'tab_name'
'reverse(str) - reverse str'
'Example:'
'  > SELECT reverse('Facebook') FROM src LIMIT 1;'
'  'koobecaF''
4 rows selected 
>>>  
>>>  CREATE TABLE dest1(len STRING);
No rows affected 
>>>  EXPLAIN FROM src1 INSERT OVERWRITE TABLE dest1 SELECT reverse(src1.value);
'Explain'
'ABSTRACT SYNTAX TREE:'
'  (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src1))) (TOK_INSERT (TOK_DESTINATION (TOK_TAB (TOK_TABNAME dest1))) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION reverse (. (TOK_TABLE_OR_COL src1) value))))))'
''
'STAGE DEPENDENCIES:'
'  Stage-1 is a root stage'
'  Stage-7 depends on stages: Stage-1 , consists of Stage-4, Stage-3, Stage-5'
'  Stage-4'
'  Stage-0 depends on stages: Stage-4, Stage-3, Stage-6'
'  Stage-2 depends on stages: Stage-0'
'  Stage-3'
'  Stage-5'
'  Stage-6 depends on stages: Stage-5'
''
'STAGE PLANS:'
'  Stage: Stage-1'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        src1 '
'          TableScan'
'            alias: src1'
'            Select Operator'
'              expressions:'
'                    expr: reverse(value)'
'                    type: string'
'              outputColumnNames: _col0'
'              File Output Operator'
'                compressed: false'
'                GlobalTableId: 1'
'                table:'
'                    input format: org.apache.hadoop.mapred.TextInputFormat'
'                    output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat'
'                    serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'
'                    name: udf_reverse.dest1'
''
'  Stage: Stage-7'
'    Conditional Operator'
''
'  Stage: Stage-4'
'    Move Operator'
'      files:'
'          hdfs directory: true'
'          destination: pfile:!!{hive.exec.scratchdir}!!'
''
'  Stage: Stage-0'
'    Move Operator'
'      tables:'
'          replace: true'
'          table:'
'              input format: org.apache.hadoop.mapred.TextInputFormat'
'              output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat'
'              serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'
'              name: udf_reverse.dest1'
''
'  Stage: Stage-2'
'    Stats-Aggr Operator'
''
'  Stage: Stage-3'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        pfile:!!{hive.exec.scratchdir}!! '
'            File Output Operator'
'              compressed: false'
'              GlobalTableId: 0'
'              table:'
'                  input format: org.apache.hadoop.mapred.TextInputFormat'
'                  output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat'
'                  serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'
'                  name: udf_reverse.dest1'
''
'  Stage: Stage-5'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        pfile:!!{hive.exec.scratchdir}!! '
'            File Output Operator'
'              compressed: false'
'              GlobalTableId: 0'
'              table:'
'                  input format: org.apache.hadoop.mapred.TextInputFormat'
'                  output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat'
'                  serde: org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe'
'                  name: udf_reverse.dest1'
''
'  Stage: Stage-6'
'    Move Operator'
'      files:'
'          hdfs directory: true'
'          destination: pfile:!!{hive.exec.scratchdir}!!'
''
''
89 rows selected 
>>>  FROM src1 INSERT OVERWRITE TABLE dest1 SELECT reverse(src1.value);
'_c0'
No rows selected 
>>>  SELECT dest1.* FROM dest1;
'len'
'832_lav'
''
'113_lav'
'72_lav'
'561_lav'
'904_lav'
'552_lav'
'872_lav'
'89_lav'
'484_lav'
'562_lav'
'391_lav'
'104_lav'
'051_lav'
'372_lav'
''
''
'66_lav'
''
'312_lav'
'641_lav'
'604_lav'
''
''
''
25 rows selected 
>>>  DROP TABLE dest1;
No rows affected 
>>>  
>>>  -- Test with non-ascii characters
>>>  -- kv4.txt contains the text 0xE982B5E993AE, which should be reversed to
>>>  -- 0xE993AEE982B5
>>>  CREATE TABLE dest1(name STRING) STORED AS TEXTFILE;
No rows affected 
>>>  LOAD DATA LOCAL INPATH '../data/files/kv4.txt' INTO TABLE dest1;
No rows affected 
>>>  SELECT count(1) FROM dest1 WHERE reverse(dest1.name) = _UTF-8 0xE993AEE982B5;
'_c0'
'1'
1 row selected 
>>>  !record