{"Entry":{"collection":"metric","key":"pg_stat_wal-wal_bytes","name":"pg_stat_wal.wal_bytes","aliases":["wal_bytes","pg_stat_wal"],"metadata":{"aliases":["wal_bytes","pg_stat_wal"],"category":"pg_stat_wal","content_hash":"1bbe9dad6dfa23fc0ee66e3eee1881155df040cfc880c4976dfb6404f3292f6e","derived_content_hash":"71472de5885d197f419f2c083f80b08843570512dacd5fba95b695a88e6acc7a","imported_at":"2026-09-30T00:40:46.473546+08:00","name":"pg_stat_wal.wal_bytes","name_zh":"","slug":"pg_stat_wal-wal_bytes","summary":"Total amount of WAL generated in bytes"}},"Definition":{"Collection":"metric","Key":"pg_stat_wal-wal_bytes","SourceDatabase":"center","Version":"18","SourceTable":"statistics_metric","SourceKey":"pg_stat_wal-wal_bytes","SourceRevision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f","Facts":{"comparison_data":{"field":"wal_bytes","sql_type":"numeric","units_mentioned":["bytes"],"view":"pg_stat_wal"},"comparison_hash":"e486076da5fcc0f7f8330eaf2f0143d2da2f59cf5a77ea901a4211bc67c3124b","description":["Total amount of WAL generated in bytes"],"description_zh":"生成的 WAL 总量，以字节计","description_zh_html":"\u003cp\u003epg_stat_wal.wal_bytes 统计字段。\u003c/p\u003e\u003cdl\u003e\u003cdt\u003e视图\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003epg_stat_wal\u003c/code\u003e\u003c/dd\u003e\u003cdt\u003e字段\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003ewal_bytes\u003c/code\u003e\u003c/dd\u003e\u003cdt\u003eSQL 类型\u003c/dt\u003e\u003cdd\u003e\u003ccode\u003enumeric\u003c/code\u003e\u003c/dd\u003e\u003c/dl\u003e\u003ch3\u003e同版本中文手册定义\u003c/h3\u003e\u003cp\u003e生成的 WAL 总量，以字节计\u003c/p\u003e\u003cp\u003e\u003ca href=\"/zh/docs/18/monitoring-stats.html#\"\u003e查看完整中文手册与上下文\u003c/a\u003e。\u003c/p\u003e","documented":true,"facts":[{"label":"View","value":"pg_stat_wal"},{"label":"Field","value":"wal_bytes"},{"label":"SQL type","value":"numeric"},{"label":"Units named in the field definition","value":"bytes"},{"label":"Reset observation","value":"Time at which these statistics were last reset"}],"facts_zh":[{"label":"视图","value":"pg_stat_wal"},{"label":"字段","value":"wal_bytes"},{"label":"SQL 类型","value":"numeric"},{"label":"字段定义记载的单位","value":"bytes"},{"label":"重置条件","value":"这些统计上次重置的时间"}],"field":"wal_bytes","manual_html":"","manual_path":"/docs/18/monitoring-stats.html","related":[{"label":"pg_stat_wal columns","url":"/wiki/catalog/pg_stat_wal/?v=18"},{"label":"Statistics collection and reset functions","url":"/docs/18/monitoring-stats.html"}],"release":{"channel":"stable","label":"18.6","major":"18","ref":"https://ftp.postgresql.org/pub/source/v18.6/postgresql-18.6.tar.bz2","revision":"555610c24d53e4316da5b7d3fc25c279d96856d5e0e23ee308c328c5fa881d9f"},"sections":[{"paragraphs":["The pg_stat_wal view will always have a single row, containing data about WAL activity of the cluster."],"title":"View semantics"},{"paragraphs":["Read the same-version statistics collection and view documentation below for reset scope and visibility. 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