Saving all output to "!!{outputDirectory}!!/udf_lpad.q.raw". Enter "record" with no arguments to stop it.
>>>  !run !!{qFileDirectory}!!/udf_lpad.q
>>>  DESCRIBE FUNCTION lpad;
'tab_name'
'lpad(str, len, pad) - Returns str, left-padded with pad to a length of len'
1 row selected 
>>>  DESCRIBE FUNCTION EXTENDED lpad;
'tab_name'
'lpad(str, len, pad) - Returns str, left-padded with pad to a length of len'
'If str is longer than len, the return value is shortened to len characters.'
'Example:'
'  > SELECT lpad('hi', 5, '??') FROM src LIMIT 1;'
'  '???hi'  > SELECT lpad('hi', 1, '??') FROM src LIMIT 1;'
'  'h''
6 rows selected 
>>>  
>>>  EXPLAIN SELECT 
lpad('hi', 1, '?'), 
lpad('hi', 5, '.'), 
lpad('hi', 6, '123') 
FROM src LIMIT 1;
'Explain'
'ABSTRACT SYNTAX TREE:'
'  (TOK_QUERY (TOK_FROM (TOK_TABREF (TOK_TABNAME src))) (TOK_INSERT (TOK_DESTINATION (TOK_DIR TOK_TMP_FILE)) (TOK_SELECT (TOK_SELEXPR (TOK_FUNCTION lpad 'hi' 1 '?')) (TOK_SELEXPR (TOK_FUNCTION lpad 'hi' 5 '.')) (TOK_SELEXPR (TOK_FUNCTION lpad 'hi' 6 '123'))) (TOK_LIMIT 1)))'
''
'STAGE DEPENDENCIES:'
'  Stage-1 is a root stage'
'  Stage-0 is a root stage'
''
'STAGE PLANS:'
'  Stage: Stage-1'
'    Map Reduce'
'      Alias -> Map Operator Tree:'
'        src '
'          TableScan'
'            alias: src'
'            Select Operator'
'              expressions:'
'                    expr: lpad('hi', 1, '?')'
'                    type: string'
'                    expr: lpad('hi', 5, '.')'
'                    type: string'
'                    expr: lpad('hi', 6, '123')'
'                    type: string'
'              outputColumnNames: _col0, _col1, _col2'
'              Limit'
'                File Output Operator'
'                  compressed: false'
'                  GlobalTableId: 0'
'                  table:'
'                      input format: org.apache.hadoop.mapred.TextInputFormat'
'                      output format: org.apache.hadoop.hive.ql.io.HiveIgnoreKeyTextOutputFormat'
''
'  Stage: Stage-0'
'    Fetch Operator'
'      limit: 1'
''
''
36 rows selected 
>>>  
>>>  SELECT 
lpad('hi', 1, '?'), 
lpad('hi', 5, '.'), 
lpad('hi', 6, '123') 
FROM src LIMIT 1;
'_c0','_c1','_c2'
'h','...hi','1231hi'
1 row selected 
>>>  !record