{"Entry":{"collection":"operator","key":"op-2323-lseg-line","name":"##(lseg,line)","aliases":["##","##(lseg,line)"],"metadata":{"aliases":["##","##(lseg,line)"],"category":"Geometric","content_hash":"3ee0a5552f3b1a70c31e46f588bb3b3fac04df1b54b86006269c175704e2b528","imported_at":"2026-09-30T00:40:40.387244+08:00","name":"##(lseg,line)","name_zh":"","slug":"op-2323-lseg-line","summary":"closest point to A on B"}},"Definition":{"Collection":"operator","Key":"op-2323-lseg-line","SourceDatabase":"center","Version":"14","SourceTable":"pg_operator_entry","SourceKey":"op-2323-lseg-line","SourceRevision":"a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897","Facts":{"aliases":["##","##(lseg,line)"],"comparison_data":{"memberships":[],"operator":{"commutator":"","function":"close_sl(lseg,line)","hash_join":"f","kind":"b","left_type":"lseg","merge_join":"f","negator":"","result_type":"point","right_type":"line","symbol":"##"}},"comparison_hash":"b6520a9fb2ff45f74609b52835c5dc65ce756cd72168be383e2a4554fb91d345","description":["closest point to A on B"],"facts":[{"label":"Left operand","value":"lseg"},{"label":"Right operand","value":"line"},{"label":"Result type","value":"point"},{"label":"Implementing function","value":"close_sl(lseg,line)"},{"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":[],"operator":{"commutator":"","function":"close_sl(lseg,line)","hash_join":"f","kind":"b","left_type":"lseg","merge_join":"f","negator":"","result_type":"point","right_type":"line","symbol":"##"},"related":[{"label":"lseg data type","url":"/wiki/type/lseg/?v=14"},{"label":"line data type","url":"/wiki/type/line/?v=14"},{"label":"point data type","url":"/wiki/type/point/?v=14"}],"release":{"catalog_fingerprint":"9e0116f26e5ce870719efb77ef7b73e30c7928f8af27cbe87fdea32efe3811ef","channel":"stable","label":"14.24","major":"14","manual_fingerprint":"1d055c6dc55d4defe2b6e9d0f842a47005487b21025b67e51d06721d3c122f71","ref":"https://ftp.postgresql.org/pub/source/v14.24/postgresql-14.24.tar.bz2","revision":"a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897","source_sha256":"a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"},"sections":[{"paragraphs":["The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 38.14 for more information."],"title":"Catalog interpretation"}],"signature":"##(lseg,line) → point","source_oid":"1566","sources":[{"label":"Matching PostgreSQL source archive","sha256":"a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897","url":"https://ftp.postgresql.org/pub/source/v14.24/postgresql-14.24.tar.bz2"},{"label":"PostgreSQL 14 English manual: catalog-pg-operator.html","path":"catalog-pg-operator.html","sha256":"5e69fa82a7f0b49efb4ba5fc669e5bd35aeeede75682493bfc87e6035b23dd4d","url":"/docs/14/catalog-pg-operator.html"},{"label":"PostgreSQL 14 English manual: catalog-pg-amop.html","path":"catalog-pg-amop.html","sha256":"402b87d7fb1a313b096ba5349a676ae38d507e2eb98739d6ed7f0681e0b9a9a4","url":"/docs/14/catalog-pg-amop.html"}],"tables":[]},"ManualEvidence":{"release":{"catalog_fingerprint":"9e0116f26e5ce870719efb77ef7b73e30c7928f8af27cbe87fdea32efe3811ef","channel":"stable","label":"14.24","major":"14","manual_fingerprint":"1d055c6dc55d4defe2b6e9d0f842a47005487b21025b67e51d06721d3c122f71","ref":"https://ftp.postgresql.org/pub/source/v14.24/postgresql-14.24.tar.bz2","revision":"a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897","source_sha256":"a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897"},"sources":[{"label":"Matching PostgreSQL source archive","sha256":"a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897","url":"https://ftp.postgresql.org/pub/source/v14.24/postgresql-14.24.tar.bz2"},{"label":"PostgreSQL 14 English manual: catalog-pg-operator.html","path":"catalog-pg-operator.html","sha256":"5e69fa82a7f0b49efb4ba5fc669e5bd35aeeede75682493bfc87e6035b23dd4d","url":"/docs/14/catalog-pg-operator.html"},{"label":"PostgreSQL 14 English manual: catalog-pg-amop.html","path":"catalog-pg-amop.html","sha256":"402b87d7fb1a313b096ba5349a676ae38d507e2eb98739d6ed7f0681e0b9a9a4","url":"/docs/14/catalog-pg-amop.html"}]},"MeasuredEvidence":{}},"Text":{"Collection":"operator","Key":"op-2323-lseg-line","SourceDatabase":"center","Version":"14","Locale":"en","Title":"##(lseg,line)","Summary":"closest point to A on B","BodyHTML":"\u003cp\u003eclosest point to A on B\u003c/p\u003e","SourceRevision":"a7fa7ed3d558172355f51406097a7bd4f6b473be80f311ef7cda96bf383d8897","ContentHash":"a1bfc67e09c00cd4d6d7ebed557adf05a5523c45ba98eb26464126ca327649ec","Payload":{"description":["closest point to A on B"],"related":[{"label":"lseg data type","url":"/wiki/type/lseg/?v=14"},{"label":"line data type","url":"/wiki/type/line/?v=14"},{"label":"point data type","url":"/wiki/type/point/?v=14"}],"sections":[{"paragraphs":["The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 38.14 for more information."],"title":"Catalog interpretation"}],"tables":[]}},"RequestedLocale":"zh-Hans","Fallback":true,"Versions":["10","11","12","13","14"],"Locales":["en"],"Signatures":null,"Spellings":null,"SQLState":null,"Evidence":null}