{"Entry":{"collection":"operator","key":"op-402d40-none-path","name":"@-@(none,path)","aliases":["@-@","@-@(none,path)"],"metadata":{"aliases":["@-@","@-@(none,path)"],"category":"Geometric","content_hash":"3cc62c47e2845af606f4bb6137ab80cf0da4a522cc431f5d2ff8fd8a68f4c076","imported_at":"2026-09-30T00:40:43.534168+08:00","name":"@-@(none,path)","name_zh":"","slug":"op-402d40-none-path","summary":"sum of path segment lengths"}},"Definition":{"Collection":"operator","Key":"op-402d40-none-path","SourceDatabase":"center","Version":"18","SourceTable":"pg_operator_entry","SourceKey":"op-402d40-none-path","SourceRevision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","Facts":{"aliases":["@-@","@-@(none,path)"],"comparison_data":{"memberships":[],"operator":{"commutator":"","function":"path_length(path)","hash_join":"f","kind":"l","left_type":"none","merge_join":"f","negator":"","result_type":"float8","right_type":"path","symbol":"@-@"}},"comparison_hash":"eabf6c73fd3b25d5aa03710df72e272996d4254ae004324452a262f9b68a70b8","description":["sum of path segment lengths"],"facts":[{"label":"Left operand","value":"none"},{"label":"Right operand","value":"path"},{"label":"Result type","value":"float8"},{"label":"Implementing function","value":"path_length(path)"},{"label":"Operator kind","value":"Prefix"},{"label":"Hash join candidate","value":"no"},{"label":"Merge join candidate","value":"no"}],"manual_semantics":"Source catalog description; no additional matching manual operator definition claimed","memberships":[],"operator":{"commutator":"","function":"path_length(path)","hash_join":"f","kind":"l","left_type":"none","merge_join":"f","negator":"","result_type":"float8","right_type":"path","symbol":"@-@"},"related":[{"label":"path data type","url":"/wiki/type/path/?v=18"},{"label":"float8 data type","url":"/wiki/type/float8/?v=18"}],"release":{"catalog_fingerprint":"deec62e0f0c649d9d0d058ddd0b16bf41afffd569c3fd73949ff0971ce5cabd6","channel":"stable","label":"18.6","major":"18","manual_fingerprint":"fefce9e478eb2afe5e17e869492bbedc67dce23d317f0a5257240113d6496ebc","ref":"https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2","revision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","source_sha256":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"},"sections":[{"paragraphs":["The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 36.14 for more information."],"title":"Catalog interpretation"}],"signature":"@-@(none,path) → float8","source_oid":"799","sources":[{"label":"Matching PostgreSQL source archive","sha256":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","url":"https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2"},{"label":"PostgreSQL 18 English manual: catalog-pg-operator.html","path":"catalog-pg-operator.html","sha256":"e0b1817914e5e8f9037955cd41e9a43584e9227fcc115784898ecdd9a6c0ecd6","url":"/docs/18/catalog-pg-operator.html"},{"label":"PostgreSQL 18 English manual: catalog-pg-amop.html","path":"catalog-pg-amop.html","sha256":"e65b90ee78eaf4b4da97ce5b08b972cee2e2660b882ec107be22eca47201f7d1","url":"/docs/18/catalog-pg-amop.html"}],"tables":[]},"ManualEvidence":{"release":{"catalog_fingerprint":"deec62e0f0c649d9d0d058ddd0b16bf41afffd569c3fd73949ff0971ce5cabd6","channel":"stable","label":"18.6","major":"18","manual_fingerprint":"fefce9e478eb2afe5e17e869492bbedc67dce23d317f0a5257240113d6496ebc","ref":"https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2","revision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","source_sha256":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"},"sources":[{"label":"Matching PostgreSQL source archive","sha256":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","url":"https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2"},{"label":"PostgreSQL 18 English manual: catalog-pg-operator.html","path":"catalog-pg-operator.html","sha256":"e0b1817914e5e8f9037955cd41e9a43584e9227fcc115784898ecdd9a6c0ecd6","url":"/docs/18/catalog-pg-operator.html"},{"label":"PostgreSQL 18 English manual: catalog-pg-amop.html","path":"catalog-pg-amop.html","sha256":"e65b90ee78eaf4b4da97ce5b08b972cee2e2660b882ec107be22eca47201f7d1","url":"/docs/18/catalog-pg-amop.html"}]},"MeasuredEvidence":{}},"Text":{"Collection":"operator","Key":"op-402d40-none-path","SourceDatabase":"center","Version":"18","Locale":"en","Title":"@-@(none,path)","Summary":"sum of path segment lengths","BodyHTML":"\u003cp\u003esum of path segment lengths\u003c/p\u003e","SourceRevision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","ContentHash":"7423aad074735bf8b6462aca0b4bdcf484d97f7c69d838ebc5ad583edccc1a88","Payload":{"description":["sum of path segment lengths"],"related":[{"label":"path data type","url":"/wiki/type/path/?v=18"},{"label":"float8 data type","url":"/wiki/type/float8/?v=18"}],"sections":[{"paragraphs":["The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 36.14 for more information."],"title":"Catalog interpretation"}],"tables":[]}},"RequestedLocale":"zh-Hans","Fallback":true,"Versions":["10","11","12","13","14","15","16","17","18","19","20"],"Locales":["en"],"Signatures":null,"Spellings":null,"SQLState":null,"Evidence":null}
