{"Entry":{"collection":"operator","key":"op-3c3d-timestamp-timestamp","name":"\u003c=(timestamp,timestamp)","aliases":["\u003c=","\u003c=(timestamp,timestamp)"],"metadata":{"aliases":["\u003c=","\u003c=(timestamp,timestamp)"],"category":"Date and time","content_hash":"c5f363b45c5bc6721db9cc0556cb4065177eab63144923519ebc3a39c606f1ae","imported_at":"2026-09-30T00:40:41.974142+08:00","name":"\u003c=(timestamp,timestamp)","name_zh":"","slug":"op-3c3d-timestamp-timestamp","summary":"less than or equal"}},"Definition":{"Collection":"operator","Key":"op-3c3d-timestamp-timestamp","SourceDatabase":"center","Version":"18","SourceTable":"pg_operator_entry","SourceKey":"op-3c3d-timestamp-timestamp","SourceRevision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","Facts":{"aliases":["\u003c=","\u003c=(timestamp,timestamp)"],"comparison_data":{"memberships":[{"family":"datetime_minmax_multi_ops","left_type":"timestamp","method":"brin","operator":"\u003c=(timestamp,timestamp)","purpose":"search","right_type":"timestamp","sort_family":"","strategy":"2"},{"family":"datetime_minmax_ops","left_type":"timestamp","method":"brin","operator":"\u003c=(timestamp,timestamp)","purpose":"search","right_type":"timestamp","sort_family":"","strategy":"2"},{"family":"datetime_ops","left_type":"timestamp","method":"btree","operator":"\u003c=(timestamp,timestamp)","purpose":"search","right_type":"timestamp","sort_family":"","strategy":"2"}],"operator":{"commutator":"\u003e=(timestamp,timestamp)","function":"timestamp_le(timestamp,timestamp)","hash_join":"f","kind":"b","left_type":"timestamp","merge_join":"f","negator":"\u003e(timestamp,timestamp)","result_type":"bool","right_type":"timestamp","symbol":"\u003c="}},"comparison_hash":"f548b6996451ae4c4e66aa7d83766e61f6c9978233d99267256ceead8199a3ef","description":["less than or equal"],"facts":[{"label":"Left operand","value":"timestamp"},{"label":"Right operand","value":"timestamp"},{"label":"Result type","value":"bool"},{"label":"Implementing function","value":"timestamp_le(timestamp,timestamp)"},{"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":"less than or equal","family":"datetime_ops","family_slug":"family-btree-datetime_ops","left_type":"timestamp","method":"btree","operator":"\u003c=(timestamp,timestamp)","operator_slug":"op-3c3d-timestamp-timestamp","purpose":"search","result_type":"bool","right_type":"timestamp","sort_family":"","sort_family_slug":"","strategy":"2"},{"description":"less than or equal","family":"datetime_minmax_ops","family_slug":"family-brin-datetime_minmax_ops","left_type":"timestamp","method":"brin","operator":"\u003c=(timestamp,timestamp)","operator_slug":"op-3c3d-timestamp-timestamp","purpose":"search","result_type":"bool","right_type":"timestamp","sort_family":"","sort_family_slug":"","strategy":"2"},{"description":"less than or equal","family":"datetime_minmax_multi_ops","family_slug":"family-brin-datetime_minmax_multi_ops","left_type":"timestamp","method":"brin","operator":"\u003c=(timestamp,timestamp)","operator_slug":"op-3c3d-timestamp-timestamp","purpose":"search","result_type":"bool","right_type":"timestamp","sort_family":"","sort_family_slug":"","strategy":"2"}],"operator":{"commutator":"\u003e=(timestamp,timestamp)","function":"timestamp_le(timestamp,timestamp)","hash_join":"f","kind":"b","left_type":"timestamp","merge_join":"f","negator":"\u003e(timestamp,timestamp)","result_type":"bool","right_type":"timestamp","symbol":"\u003c="},"related":[{"label":"timestamp data type","url":"/wiki/type/timestamp/?v=18"},{"label":"bool data type","url":"/wiki/type/bool/?v=18"},{"label":"Commutator: \u003e=(timestamp,timestamp)","url":"/wiki/operator/op-3e3d-timestamp-timestamp/?v=18"},{"label":"Negator: \u003e(timestamp,timestamp)","url":"/wiki/operator/op-3e-timestamp-timestamp/?v=18"},{"label":"btree/datetime_ops family","url":"/wiki/opclass/family-btree-datetime_ops/?v=18"},{"label":"brin/datetime_minmax_ops family","url":"/wiki/opclass/family-brin-datetime_minmax_ops/?v=18"},{"label":"brin/datetime_minmax_multi_ops family","url":"/wiki/opclass/family-brin-datetime_minmax_multi_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=(timestamp,timestamp) → bool","source_oid":"2063","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":"datetime_ops","url":"/wiki/opclass/family-btree-datetime_ops/?v=18"},"method":{"text":"B-tree","url":"/wiki/indexam/btree/?v=18"},"purpose":"search","sort_family":"","strategy":"2"},{"family":{"text":"datetime_minmax_ops","url":"/wiki/opclass/family-brin-datetime_minmax_ops/?v=18"},"method":{"text":"BRIN","url":"/wiki/indexam/brin/?v=18"},"purpose":"search","sort_family":"","strategy":"2"},{"family":{"text":"datetime_minmax_multi_ops","url":"/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=18"},"method":{"text":"BRIN","url":"/wiki/indexam/brin/?v=18"},"purpose":"search","sort_family":"","strategy":"2"}],"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-3c3d-timestamp-timestamp","SourceDatabase":"center","Version":"18","Locale":"en","Title":"\u003c=(timestamp,timestamp)","Summary":"less than or equal","BodyHTML":"\u003cp\u003eless than or equal\u003c/p\u003e","SourceRevision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","ContentHash":"ac9b1acf7480659a8f97731f30810634b5e7ac312d3467ff76b231a9186a71e6","Payload":{"description":["less than or equal"],"related":[{"label":"timestamp data type","url":"/wiki/type/timestamp/?v=18"},{"label":"bool data type","url":"/wiki/type/bool/?v=18"},{"label":"Commutator: \u003e=(timestamp,timestamp)","url":"/wiki/operator/op-3e3d-timestamp-timestamp/?v=18"},{"label":"Negator: \u003e(timestamp,timestamp)","url":"/wiki/operator/op-3e-timestamp-timestamp/?v=18"},{"label":"btree/datetime_ops family","url":"/wiki/opclass/family-btree-datetime_ops/?v=18"},{"label":"brin/datetime_minmax_ops family","url":"/wiki/opclass/family-brin-datetime_minmax_ops/?v=18"},{"label":"brin/datetime_minmax_multi_ops family","url":"/wiki/opclass/family-brin-datetime_minmax_multi_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":"datetime_ops","url":"/wiki/opclass/family-btree-datetime_ops/?v=18"},"method":{"text":"B-tree","url":"/wiki/indexam/btree/?v=18"},"purpose":"search","sort_family":"","strategy":"2"},{"family":{"text":"datetime_minmax_ops","url":"/wiki/opclass/family-brin-datetime_minmax_ops/?v=18"},"method":{"text":"BRIN","url":"/wiki/indexam/brin/?v=18"},"purpose":"search","sort_family":"","strategy":"2"},{"family":{"text":"datetime_minmax_multi_ops","url":"/wiki/opclass/family-brin-datetime_minmax_multi_ops/?v=18"},"method":{"text":"BRIN","url":"/wiki/indexam/brin/?v=18"},"purpose":"search","sort_family":"","strategy":"2"}],"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}
