Saving all output to "!!{outputDirectory}!!/udf_repeat.q.raw". Enter "record" with no arguments to stop it.
>>>  !run !!{qFileDirectory}!!/udf_repeat.q
>>>  DESCRIBE FUNCTION repeat;
'tab_name'
'repeat(str, n) - repeat str n times '
1 row selected 
>>>  DESCRIBE FUNCTION EXTENDED repeat;
'tab_name'
'repeat(str, n) - repeat str n times '
'Example:'
'  > SELECT repeat('123', 2) FROM src LIMIT 1;'
'  '123123''
4 rows selected 
>>>  
>>>  EXPLAIN SELECT 
repeat("Facebook", 3), 
repeat("", 4), 
repeat("asd", 0), 
repeat("asdf", -1) 
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 repeat "Facebook" 3)) (TOK_SELEXPR (TOK_FUNCTION repeat "" 4)) (TOK_SELEXPR (TOK_FUNCTION repeat "asd" 0)) (TOK_SELEXPR (TOK_FUNCTION repeat "asdf" (- 1)))) (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: repeat('Facebook', 3)'
'                    type: string'
'                    expr: repeat('', 4)'
'                    type: string'
'                    expr: repeat('asd', 0)'
'                    type: string'
'                    expr: repeat('asdf', (- 1))'
'                    type: string'
'              outputColumnNames: _col0, _col1, _col2, _col3'
'              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'
''
''
38 rows selected 
>>>  
>>>  SELECT 
repeat("Facebook", 3), 
repeat("", 4), 
repeat("asd", 0), 
repeat("asdf", -1) 
FROM src LIMIT 1;
'_c0','_c1','_c2','_c3'
'FacebookFacebookFacebook','','',''
1 row selected 
>>>  !record