{"Entry":{"collection":"catalog","key":"pg_stat_replication_slots","name":"pg_stat_replication_slots","aliases":[],"metadata":{"changed_in":["19"],"changes":[{"added":[],"attributes":[],"description_changed":false,"descriptions":[],"from":"13","order":false,"removed":[],"status":"added","to":"14","types":[]},{"added":["mem_exceeded_count","slotsync_skip_count","slotsync_last_skip"],"attributes":[],"description_changed":false,"descriptions":[],"from":"18","listing":[],"order":false,"removed":[],"status":"changed","to":"19","types":[],"unlisted":[]}],"column_count":13,"content_hash":"4f935657eea8370ed676b722bb6c99b922658fe5fd4b656c33a3d71dd242fece","derived_content_hash":"9899a964575859a1077a283429d66daea7375fff0514806c8d18aea3f736b806","documentation_refresh":{"batch":"20261113","original_source_rev":"catalog-bilingual-repair:cf88b7fa8f4819fffe83bf54075bdcc8a4cad338538d0b0ff34915e22aabe2f2","versions":{"14":"14.25","15":"15.20","16":"16.16","17":"17.12","18":"18.7","19":"19rc2"}},"first_version":"14","imported_at":"2026-09-30T00:40:55.978632+08:00","kind":"statistics","last_version":"20","name":"pg_stat_replication_slots","position":105,"present_in":["14","15","16","17","18","19","20"],"relation_oid":null,"relkind":"v","shared":false,"source_rev":"catalog-bilingual-repair:cf88b7fa8f4819fffe83bf54075bdcc8a4cad338538d0b0ff34915e22aabe2f2","summary":"The pg_stat_replication_slots view will contain one row per logical replication slot, showing statistics about its usage.","summary_zh":"pg_stat_replication_slots 视图将包含每个逻辑复制槽的一行，显示关于其使用情况的统计信息。"}},"Definition":{"Collection":"catalog","Key":"pg_stat_replication_slots","SourceDatabase":"center","Version":"18","SourceTable":"catalog","SourceKey":"pg_stat_replication_slots","SourceRevision":"catalog-bilingual-repair:cf88b7fa8f4819fffe83bf54075bdcc8a4cad338538d0b0ff34915e22aabe2f2","Facts":{"columns":[{"array_dimensions":0,"attnum":1,"description":"A unique, cluster-wide identifier for the replication slot","description_zh":"复制槽在整个集簇范围内的唯一标识符","documented":true,"documented_name":"slot_name","hidden":false,"name":"slot_name","not_null":false,"references":"","type":"text","type_modifier":-1,"type_oid":25,"zh_from":"same-version-manual"},{"array_dimensions":0,"attnum":2,"description":"Number of transactions spilled to disk once the memory used by logical decoding to decode changes from WAL has exceeded logical_decoding_work_mem. 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视图将包含每个逻辑复制槽的一行，显示关于其使用情况的统计信息。\u003c/p\u003e\u003cdiv class=\"table\" id=\"PG-STAT-REPLICATION-SLOTS-VIEW\"\u003e\u003cp class=\"title\"\u003e\u003cstrong\u003e表 27.15. \u003ccode class=\"structname\"\u003epg_stat_replication_slots\u003c/code\u003e 视图\u003c/strong\u003e\u003c/p\u003e\u003cdiv class=\"table-contents\"\u003e\u003ctable border=\"1\" class=\"table\" summary=\"pg_stat_replication_slots 视图\"\u003e\u003ccolgroup\u003e\u003ccol/\u003e\u003c/colgroup\u003e\u003cthead\u003e\u003ctr\u003e\u003cth class=\"catalog_table_entry\"\u003e\u003cp class=\"column_definition\"\u003e\n        列类型\n       \u003c/p\u003e\n\u003cp\u003e\n        描述\n      \u003c/p\u003e\u003c/th\u003e\u003c/tr\u003e\u003c/thead\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd class=\"catalog_table_entry\"\u003e\u003cp class=\"column_definition\"\u003e\n\u003ccode class=\"structfield\"\u003eslot_name\u003c/code\u003e \u003ccode class=\"type\"\u003etext\u003c/code\u003e\n\u003c/p\u003e\n\u003cp\u003e复制槽在整个集簇范围内的唯一标识符\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd class=\"catalog_table_entry\"\u003e\u003cp class=\"column_definition\"\u003e\n\u003ccode class=\"structfield\"\u003espill_txns\u003c/code\u003e \u003ccode class=\"type\"\u003ebigint\u003c/code\u003e\n\u003c/p\u003e\n\u003cp\u003e当逻辑解码从 WAL 解码更改时所使用的内存超过 \u003ccode class=\"literal\"\u003elogical_decoding_work_mem\u003c/code\u003e 后，溢出到磁盘的事务数。顶层事务和子事务都会使此计数器递增。\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd class=\"catalog_table_entry\"\u003e\u003cp class=\"column_definition\"\u003e\n\u003ccode class=\"structfield\"\u003espill_count\u003c/code\u003e \u003ccode class=\"type\"\u003ebigint\u003c/code\u003e\n\u003c/p\u003e\n\u003cp\u003e\n        在为该槽解码来自 WAL 的更改时，事务溢出到磁盘的次数。此计数器在每次事务溢出时递增，并且同一事务可能溢出多次。\n      \u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd class=\"catalog_table_entry\"\u003e\u003cp class=\"column_definition\"\u003e\n\u003ccode class=\"structfield\"\u003espill_bytes\u003c/code\u003e \u003ccode class=\"type\"\u003ebigint\u003c/code\u003e\n\u003c/p\u003e\n\u003cp\u003e为此槽从 WAL 解码更改时，溢出到磁盘的已解码事务数据量。此计数器及其他溢出计数器可用于衡量逻辑解码期间发生的 I/O，并用于调优 \u003ccode class=\"literal\"\u003elogical_decoding_work_mem\u003c/code\u003e。\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd class=\"catalog_table_entry\"\u003e\u003cp class=\"column_definition\"\u003e\n\u003ccode class=\"structfield\"\u003estream_txns\u003c/code\u003e \u003ccode class=\"type\"\u003ebigint\u003c/code\u003e\n\u003c/p\u003e\n\u003cp\u003e当逻辑解码为此槽从 WAL 解码更改时所使用的内存超过 \u003ccode class=\"literal\"\u003elogical_decoding_work_mem\u003c/code\u003e 后，流式传输到解码输出插件的进行中事务数。流式传输仅适用于顶层事务（子事务不能单独进行流式传输），因此子事务不会使此计数器递增。\u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd class=\"catalog_table_entry\"\u003e\u003cp class=\"column_definition\"\u003e\n\u003ccode class=\"structfield\"\u003estream_count\u003c/code\u003e\u003ccode class=\"type\"\u003ebigint\u003c/code\u003e\n\u003c/p\u003e\n\u003cp\u003e\n        在为该槽解码来自 WAL 的更改时，将进行中事务流式传输到解码输出插件的次数。此计数器在每次事务流式传输时递增，并且同一事务可能被流式传输多次。\n      \u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd class=\"catalog_table_entry\"\u003e\u003cp class=\"column_definition\"\u003e\n\u003ccode class=\"structfield\"\u003estream_bytes\u003c/code\u003e\u003ccode class=\"type\"\u003ebigint\u003c/code\u003e\n\u003c/p\u003e\n\u003cp\u003e\n        在为该槽解码来自 WAL 的更改时，为将进行中事务流式传输到解码输出插件而解码的事务数据量。这个和针对此槽的其他流式传输计数器可用于调优 \u003ccode class=\"literal\"\u003elogical_decoding_work_mem\u003c/code\u003e。\n       \u003c/p\u003e\n\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd class=\"catalog_table_entry\"\u003e\u003cp class=\"column_definition\"\u003e\n\u003ccode class=\"structfield\"\u003etotal_txns\u003c/code\u003e \u003ccode class=\"type\"\u003ebigint\u003c/code\u003e\n\u003c/p\u003e\n\u003cp\u003e\n        针对此槽发送到解码输出插件的已解码事务数。这只统计顶层事务，不会因子事务而增加计数。注意，这包括流式传输和/或溢出的事务。\n       \u003c/p\u003e\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd class=\"catalog_table_entry\"\u003e\u003cp class=\"column_definition\"\u003e\n\u003ccode class=\"structfield\"\u003etotal_bytes\u003c/code\u003e\u003ccode class=\"type\"\u003ebigint\u003c/code\u003e\n\u003c/p\u003e\n\u003cp\u003e\n        在为此槽从 WAL 解码更改时，为将事务发送到解码输出插件而解码的事务数据量。注意这包括流式传输和/或溢出的数据。\n       \u003c/p\u003e\n\u003c/td\u003e\u003c/tr\u003e\u003ctr\u003e\u003ctd class=\"catalog_table_entry\"\u003e\u003cp class=\"column_definition\"\u003e\n\u003ccode class=\"structfield\"\u003estats_reset\u003c/code\u003e \u003ccode class=\"type\"\u003etimestamp with time 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Streaming only works with top-level transactions (subtransactions can't be streamed independently), so the counter is not incremented for subtransactions.","description_zh":"当逻辑解码为此槽从 WAL 解码更改时所使用的内存超过 logical_decoding_work_mem 后，流式传输到解码输出插件的进行中事务数。流式传输仅适用于顶层事务（子事务不能单独进行流式传输），因此子事务不会使此计数器递增。","documented":true,"documented_name":"stream_txns","hidden":false,"name":"stream_txns","not_null":false,"references":"","type":"bigint","type_modifier":-1,"type_oid":20,"zh_from":"same-version-manual"},{"array_dimensions":0,"attnum":6,"description":"Number of times in-progress transactions were streamed to the decoding output plugin while decoding changes from WAL for this slot. 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This and other streaming counters for this slot can be used to tune logical_decoding_work_mem.","description_zh":"在为该槽解码来自 WAL 的更改时，为将进行中事务流式传输到解码输出插件而解码的事务数据量。这个和针对此槽的其他流式传输计数器可用于调优 logical_decoding_work_mem。","documented":true,"documented_name":"stream_bytes","hidden":false,"name":"stream_bytes","not_null":false,"references":"","type":"bigint","type_modifier":-1,"type_oid":20,"zh_from":"same-version-manual"},{"array_dimensions":0,"attnum":8,"description":"Number of decoded transactions sent to the decoding output plugin for this slot. This counts top-level transactions only, and is not incremented for subtransactions. Note that this includes the transactions that are streamed and/or spilled.","description_zh":"针对此槽发送到解码输出插件的已解码事务数。这只统计顶层事务，不会因子事务而增加计数。注意，这包括流式传输和/或溢出的事务。","documented":true,"documented_name":"total_txns","hidden":false,"name":"total_txns","not_null":false,"references":"","type":"bigint","type_modifier":-1,"type_oid":20,"zh_from":"same-version-manual"},{"array_dimensions":0,"attnum":9,"description":"Amount of transaction data decoded for sending transactions to the decoding output plugin while decoding changes from WAL for this slot. Note that this includes data that is streamed and/or spilled.","description_zh":"在为此槽从 WAL 解码更改时，为将事务发送到解码输出插件而解码的事务数据量。注意这包括流式传输和/或溢出的数据。","documented":true,"documented_name":"total_bytes","hidden":false,"name":"total_bytes","not_null":false,"references":"","type":"bigint","type_modifier":-1,"type_oid":20,"zh_from":"same-version-manual"},{"array_dimensions":0,"attnum":10,"description":"Time at which these statistics were last reset","description_zh":"这些统计信息上次被重置的时间","documented":true,"documented_name":"stats_reset","hidden":false,"name":"stats_reset","not_null":false,"references":"","type":"timestamp with time zone","type_modifier":-1,"type_oid":1184,"zh_from":"same-version-manual"}],"description":"The pg_stat_replication_slots view will contain one row per logical replication slot, showing statistics about its usage."}},"RequestedLocale":"en","Fallback":false,"Versions":["14","15","16","17","18","19","20"],"Locales":["en","zh-Hans"],"Signatures":null,"Spellings":null,"SQLState":null,"Evidence":null}