65 lines
1.8 KiB
Plaintext
65 lines
1.8 KiB
Plaintext
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Database : literature
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Restore : NO
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Operator : feed
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Number : 1
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Signature: nrel(tuple(x)) -> stream(tuple(x))
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Example : query Papers feed count
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Result : 1238
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Operator : consume
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Number : 1
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Signature: (stream(tuple(x)) -> nrel(tuple(x))
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Example : query Papers feed head [1] project [Authors] consume
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Result : ((nrel(tuple((Authors (arel(tuple((Name string))))))))(((0 ("Zhong Li") ("Jianping Fan")))))
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Operator : afeed
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Number : 1
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Signature: arel(tuple(x)) -> stream(tuple(x))
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Example : query authordoc feed head [1000] filter [.Details afeed count > 1] count
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Result : 363
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Operator : aconsume
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Number : 1
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Signature: stream(tuple(x)) -> arel(tuple(x))
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Example : query Papers feed extend [Pub_with_B: .Authors afeed filter [.Name contains "B"] aconsume] count
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Result : 1238
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Operator : nest
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Number : 1
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Signature: stream(tuple(x)) x (attribute_name)* x attribute_name -> stream(tuple(y))
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Example : query document feed head [10000] nest [Docid; Details] count
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Result : 5662
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Operator : unnest
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Number : 1
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Signature: stream(tuple(x)) x attribute-> stream(tuple(y))
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Example : query Papers feed unnest [Authors] count
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Result : 3745
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Operator : rename
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Number : 1
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Signature: ((stream (tuple([a1:d1, ... ,an:dn)))ar) -> (stream (tuple([a1ar:d1, ... ,anar:dn)))
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Example : query Papers feed rename[t1] count
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Result : 1238
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Operator : extract
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Number : 1
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Signature: ((stream (tuple([a1:d1, ... ,an:dn]))) x ai) -> rel(x) or nrel(x)
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Example : query Papers feed extract [Title] feed count
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Result : 1
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Operator : gettuples
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Number : 1
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Signature: stream(tuple (A) ) x nrel(tuple(B) ) -> stream(tuple ( A \ a_tid B))
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Example : query authordoc_Name_btree exactmatchS["Alejandro Munoz"] authordoc gettuples count
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Result : 1
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Operator : count
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Number : 1
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Signature : nrel -> int
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Example : query (Papers feed count) = (Papers count)
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Result : TRUE
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