{"Entry":{"collection":"operator","key":"op-3c2d3e-polygon-point","name":"\u003c-\u003e(polygon,point)","aliases":["\u003c-\u003e","\u003c-\u003e(polygon,point)"],"metadata":{"aliases":["\u003c-\u003e","\u003c-\u003e(polygon,point)"],"category":"Geometric","content_hash":"8120368c5c9e8d23b74bffb11e6d242caad128aba05aea0991bbd1ba28fda0de","imported_at":"2026-09-30T00:40:41.628438+08:00","name":"\u003c-\u003e(polygon,point)","name_zh":"","slug":"op-3c2d3e-polygon-point","summary":"distance between"}},"Definition":{"Collection":"operator","Key":"op-3c2d3e-polygon-point","SourceDatabase":"center","Version":"18","SourceTable":"pg_operator_entry","SourceKey":"op-3c2d3e-polygon-point","SourceRevision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","Facts":{"aliases":["\u003c-\u003e","\u003c-\u003e(polygon,point)"],"comparison_data":{"memberships":[{"family":"poly_ops","left_type":"polygon","method":"gist","operator":"\u003c-\u003e(polygon,point)","purpose":"ordering","right_type":"point","sort_family":"float_ops","strategy":"15"},{"family":"poly_ops","left_type":"polygon","method":"spgist","operator":"\u003c-\u003e(polygon,point)","purpose":"ordering","right_type":"point","sort_family":"float_ops","strategy":"15"}],"operator":{"commutator":"\u003c-\u003e(point,polygon)","function":"dist_polyp(polygon,point)","hash_join":"f","kind":"b","left_type":"polygon","merge_join":"f","negator":"","result_type":"float8","right_type":"point","symbol":"\u003c-\u003e"}},"comparison_hash":"6ebbfdbaa9c83a1a847dae483ec8bd639333c6c45a65c4ea8138b65bafd17b5b","description":["distance between"],"facts":[{"label":"Left operand","value":"polygon"},{"label":"Right operand","value":"point"},{"label":"Result type","value":"float8"},{"label":"Implementing function","value":"dist_polyp(polygon,point)"},{"label":"Operator kind","value":"Binary"},{"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":[{"description":"distance between","family":"poly_ops","family_slug":"family-gist-poly_ops","left_type":"polygon","method":"gist","operator":"\u003c-\u003e(polygon,point)","operator_slug":"op-3c2d3e-polygon-point","purpose":"ordering","result_type":"float8","right_type":"point","sort_family":"float_ops","sort_family_slug":"family-btree-float_ops","strategy":"15"},{"description":"distance between","family":"poly_ops","family_slug":"family-spgist-poly_ops","left_type":"polygon","method":"spgist","operator":"\u003c-\u003e(polygon,point)","operator_slug":"op-3c2d3e-polygon-point","purpose":"ordering","result_type":"float8","right_type":"point","sort_family":"float_ops","sort_family_slug":"family-btree-float_ops","strategy":"15"}],"operator":{"commutator":"\u003c-\u003e(point,polygon)","function":"dist_polyp(polygon,point)","hash_join":"f","kind":"b","left_type":"polygon","merge_join":"f","negator":"","result_type":"float8","right_type":"point","symbol":"\u003c-\u003e"},"related":[{"label":"polygon data type","url":"/wiki/type/polygon/?v=18"},{"label":"point data type","url":"/wiki/type/point/?v=18"},{"label":"float8 data type","url":"/wiki/type/float8/?v=18"},{"label":"Commutator: \u003c-\u003e(point,polygon)","url":"/wiki/operator/op-3c2d3e-point-polygon/?v=18"},{"label":"gist/poly_ops family","url":"/wiki/opclass/family-gist-poly_ops/?v=18"},{"label":"spgist/poly_ops family","url":"/wiki/opclass/family-spgist-poly_ops/?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":"\u003c-\u003e(polygon,point) → float8","source_oid":"3289","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":[{"columns":[{"key":"method","label":"Index AM"},{"key":"family","label":"Family"},{"key":"strategy","label":"Strategy"},{"key":"purpose","label":"Purpose"},{"key":"sort_family","label":"Ordering family"}],"key":"memberships","rows":[{"family":{"text":"poly_ops","url":"/wiki/opclass/family-gist-poly_ops/?v=18"},"method":{"text":"GiST","url":"/wiki/indexam/gist/?v=18"},"purpose":"ordering","sort_family":"float_ops","strategy":"15"},{"family":{"text":"poly_ops","url":"/wiki/opclass/family-spgist-poly_ops/?v=18"},"method":{"text":"SP-GiST","url":"/wiki/indexam/spgist/?v=18"},"purpose":"ordering","sort_family":"float_ops","strategy":"15"}],"title":"Declared operator-family membership"}]},"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-3c2d3e-polygon-point","SourceDatabase":"center","Version":"18","Locale":"en","Title":"\u003c-\u003e(polygon,point)","Summary":"distance between","BodyHTML":"\u003cp\u003edistance between\u003c/p\u003e","SourceRevision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","ContentHash":"7d69ce55ab88e750e88858b1affd3b9ad1f52652f7bc1691fc32c39970cbd943","Payload":{"description":["distance between"],"related":[{"label":"polygon data type","url":"/wiki/type/polygon/?v=18"},{"label":"point data type","url":"/wiki/type/point/?v=18"},{"label":"float8 data type","url":"/wiki/type/float8/?v=18"},{"label":"Commutator: \u003c-\u003e(point,polygon)","url":"/wiki/operator/op-3c2d3e-point-polygon/?v=18"},{"label":"gist/poly_ops family","url":"/wiki/opclass/family-gist-poly_ops/?v=18"},{"label":"spgist/poly_ops family","url":"/wiki/opclass/family-spgist-poly_ops/?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":[{"columns":[{"key":"method","label":"Index AM"},{"key":"family","label":"Family"},{"key":"strategy","label":"Strategy"},{"key":"purpose","label":"Purpose"},{"key":"sort_family","label":"Ordering family"}],"key":"memberships","rows":[{"family":{"text":"poly_ops","url":"/wiki/opclass/family-gist-poly_ops/?v=18"},"method":{"text":"GiST","url":"/wiki/indexam/gist/?v=18"},"purpose":"ordering","sort_family":"float_ops","strategy":"15"},{"family":{"text":"poly_ops","url":"/wiki/opclass/family-spgist-poly_ops/?v=18"},"method":{"text":"SP-GiST","url":"/wiki/indexam/spgist/?v=18"},"purpose":"ordering","sort_family":"float_ops","strategy":"15"}],"title":"Declared operator-family membership"}]}},"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}