Database : nrel
Restore  : YES

Operator : unnest
Number   : 1
Signature: stream -> stream
Example  : query families feed unnest[Children] count
Result   : 5

Operator : nest2
Number   : 1
Signature: stream -> stream
Example  : query families feed unnest[Children] nest2[Father,Mother;Parents] count
Result   : 3

Operator : count
Number   : 2
Signature: nrel2 -> int
Example  : query children count
Result   : 3

Operator : feed
Number   : 1
Signature: nrel2 -> stream
Example  : query children feed count
Result   : 3

Operator : consume2
Number   : 1
Signature: stream -> nrel2
Example  : query children feed consume2 count
Result   : 3

Operator : aconsume2
Number   : 1
Signature: stream -> arel2
Example  : query children feed aconsume2 count
Result   : 3

Operator : extract
Number   : 1
Signature: stream -> nrel2
Example  : query children feed extract[Kinder] count
Result   : 1

Operator : rename
Number   : 1
Signature: stream -> stream
Example  : query children feed rename[cloned] consume count
Result   : 3

Operator : gettuples
Number   : 1
Signature: stream -> stream
Example  : query index1 feed children gettuples count
Result   : 3

Operator : dblpimport
Number   : 1
Signature: text -> nrel2
Example  : query "dblp.xml" dblpimport["stopwords.txt"] count > 0
Result   : TRUE

Operator : genRel
Number   : 1
Signature: string, string, int, int, string, int, int, arel2/arel/vector -> nrel2/arel2/nrel/arel/vector
Example  : query genRel("nrel2", "Attr", 10, 100, "int", 0, 0, genRel("arel2", "Attr", 10, 100, "int", 0, 0, undefined)) consume
Result   : TRUE


Operator : typeof
Number   : 1
Signature: X -> X
Example  : query genRel("nrel2", "Attr", 10, 100, "int", 0, 0, undefined) typeof consume
Result   : typeerror