{"Entry":{"collection":"operator","key":"op-2d-abstime-reltime","name":"-(abstime,reltime)","aliases":["-","-(abstime,reltime)"],"metadata":{"aliases":["-","-(abstime,reltime)"],"category":"Date and time","content_hash":"a4e9f56087823c31d1870f198081cac5eaa73d0af9fea1edf871e74842527fa9","imported_at":"2026-09-30T00:40:40.845794+08:00","name":"-(abstime,reltime)","name_zh":"","slug":"op-2d-abstime-reltime","summary":"subtract"}},"Definition":{"Collection":"operator","Key":"op-2d-abstime-reltime","SourceDatabase":"center","Version":"11","SourceTable":"pg_operator_entry","SourceKey":"op-2d-abstime-reltime","SourceRevision":"2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0","Facts":{"aliases":["-","-(abstime,reltime)"],"comparison_data":{"memberships":[],"operator":{"commutator":"","function":"timemi(abstime,reltime)","hash_join":"f","kind":"b","left_type":"abstime","merge_join":"f","negator":"","result_type":"abstime","right_type":"reltime","symbol":"-"}},"comparison_hash":"bf2cc61a6ebb2b341d77b742b44ddac419f4a62975aa45f8dfbac2ba1f84edd6","description":["subtract"],"facts":[{"label":"Left operand","value":"abstime"},{"label":"Right operand","value":"reltime"},{"label":"Result type","value":"abstime"},{"label":"Implementing function","value":"timemi(abstime,reltime)"},{"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":"timemi(abstime,reltime)","hash_join":"f","kind":"b","left_type":"abstime","merge_join":"f","negator":"","result_type":"abstime","right_type":"reltime","symbol":"-"},"related":[{"label":"abstime data type","url":"/wiki/type/abstime/?v=11"},{"label":"reltime data type","url":"/wiki/type/reltime/?v=11"}],"release":{"catalog_fingerprint":"4f08eb8c7ac7d09abfbb29a172148a44b8fb72026616bb55a5f8f84db7a38785","channel":"historical","label":"11.22","major":"11","manual_fingerprint":"99c9e45d34555f000789cb4e019492e838041c1f2f31d840f3051ff9d7ed9118","ref":"https://ftp.postgresql.org/pub/source/v11.22/postgresql-11.22.tar.bz2","revision":"2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0","source_sha256":"2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"},"sections":[{"paragraphs":["The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 38.13 for more information.","Unused columns contain zeroes. For example, oprleft is zero for a prefix operator."],"title":"Catalog interpretation"}],"signature":"-(abstime,reltime) → abstime","source_oid":"582","sources":[{"label":"Matching PostgreSQL source archive","sha256":"2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0","url":"https://ftp.postgresql.org/pub/source/v11.22/postgresql-11.22.tar.bz2"},{"label":"PostgreSQL 11 English manual: catalog-pg-operator.html","path":"catalog-pg-operator.html","sha256":"3de94bb7f17052a69cf35056c95cac18bf74de96ea2c7b243165f1eeb6a3d587","url":"/docs/11/catalog-pg-operator.html"},{"label":"PostgreSQL 11 English manual: catalog-pg-amop.html","path":"catalog-pg-amop.html","sha256":"c17d050a6f2d093de2c343242bcc4d446b936de1d2902727d3fa3b0697b44fd3","url":"/docs/11/catalog-pg-amop.html"}],"tables":[]},"ManualEvidence":{"release":{"catalog_fingerprint":"4f08eb8c7ac7d09abfbb29a172148a44b8fb72026616bb55a5f8f84db7a38785","channel":"historical","label":"11.22","major":"11","manual_fingerprint":"99c9e45d34555f000789cb4e019492e838041c1f2f31d840f3051ff9d7ed9118","ref":"https://ftp.postgresql.org/pub/source/v11.22/postgresql-11.22.tar.bz2","revision":"2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0","source_sha256":"2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0"},"sources":[{"label":"Matching PostgreSQL source archive","sha256":"2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0","url":"https://ftp.postgresql.org/pub/source/v11.22/postgresql-11.22.tar.bz2"},{"label":"PostgreSQL 11 English manual: catalog-pg-operator.html","path":"catalog-pg-operator.html","sha256":"3de94bb7f17052a69cf35056c95cac18bf74de96ea2c7b243165f1eeb6a3d587","url":"/docs/11/catalog-pg-operator.html"},{"label":"PostgreSQL 11 English manual: catalog-pg-amop.html","path":"catalog-pg-amop.html","sha256":"c17d050a6f2d093de2c343242bcc4d446b936de1d2902727d3fa3b0697b44fd3","url":"/docs/11/catalog-pg-amop.html"}]},"MeasuredEvidence":{}},"Text":{"Collection":"operator","Key":"op-2d-abstime-reltime","SourceDatabase":"center","Version":"11","Locale":"en","Title":"-(abstime,reltime)","Summary":"subtract","BodyHTML":"\u003cp\u003esubtract\u003c/p\u003e","SourceRevision":"2cb7c97d7a0d7278851bbc9c61f467b69c094c72b81740b751108e7892ebe1f0","ContentHash":"a447866acf1dbd2ab00bddaf88c38675ff8e96f7fcd18e98ffe0985269a6883b","Payload":{"description":["subtract"],"related":[{"label":"abstime data type","url":"/wiki/type/abstime/?v=11"},{"label":"reltime data type","url":"/wiki/type/reltime/?v=11"}],"sections":[{"paragraphs":["The catalog pg_operator stores information about operators. See CREATE OPERATOR and Section 38.13 for more information.","Unused columns contain zeroes. For example, oprleft is zero for a prefix operator."],"title":"Catalog interpretation"}],"tables":[]}},"RequestedLocale":"zh-Hans","Fallback":true,"Versions":["10","11"],"Locales":["en"],"Signatures":null,"Spellings":null,"SQLState":null,"Evidence":null}