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secondo/Optimizer/tmp/XTree.examples

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2026-01-23 17:03:45 +08:00
Database: berlintest
Restore : No
Operator : creatextree
Number : 1
Signature: relation x attribute -> xtree
Example : query strassen creatextree[GeoData]
Result : (xtree ())
Operator : creatextree2
Number : 1
Signature: relation x attribute x config-name -> xtree
Example : query strassen creatextree2[GeoData, limit80e]
Result : (xtree ())
Operator : creatextree3
Number : 1
Signature: relation x attribute x config_name x getdatafun-name -> xtree
Example : query strassen creatextree3[GeoData, limit80e, native]
Result : (xtree ())
Operator : rangesearch
Number : 1
Signature: xtree x relation x hpoint x real -> tuple stream
Example : query strassen creatextree[GeoData] strassen rangesearch[[const hpoint value (2 (0.0 0.0))], 3000.0] count
Result : 23
Operator : nnsearch
Number : 1
Signature: xtree x relation x hpoint x int -> tuple stream
Example : query strassen creatextree[GeoData] strassen nnsearch[[const hpoint value (2 (0.0 0.0))], 30] count
Result : 30
Operator : windowintersects
Number : 1
Signature: xtree x relation x hrect -> tuple stream
Example : query strassen creatextree[GeoData] strassen windowintersects[[const hrect value (2 (9000.0 9000.0) (10000.0 10000.0))]] count
Result : 29
Operator : nnscan
Number : 1
Signature: xtree x relation x hpoint -> tuple stream
Example : query strassen creatextree[GeoData] strassen nnscan[[const hpoint value (2 (0.0 0.0))]] head[30] count
Result : 30