STATISTICS VIEW · 统计视图

pg_stat_lock

The pg_stat_lock view will contain one row for each lock type, showing cluster-wide locks statistics.

首次收录 PG 19最近收录 PG 19当前字段 5

已与 PostgreSQL 19beta3 实例逐字段核对 · 原始实测记录 ↗

字段结构 PostgreSQL 19

pg_stat_lock

字段 / COLUMN	类型 / TYPE	说明 / DESCRIPTION
`locktype`	`text`	Type of the lockable object. See pg_locks for details.
`waits`	`bigint`	Number of times a lock of this type had to wait because of a conflicting lock. Only incremented when the lock was successfully acquired after waiting longer than deadlock_timeout.
`wait_time`	`double precision`	Total time spent waiting for locks of this type, in milliseconds. Only incremented when the lock was successfully acquired after waiting longer than deadlock_timeout.
`fastpath_exceeded`	`bigint`	Number of times a lock of this type could not be acquired via fast path because the fast path slot limit was exceeded. Increasing max_locks_per_transaction can reduce this number.
`stats_reset`	`timestamp with time zone`	Time at which these statistics were last reset.

标记“隐式列”的字段不包含在 SELECT * 中；部分早期统计视图由同版本源码补全，额外来源会显示在字段说明中。

悬停查看字段类型

存在新增 / 类型或属性变化移除

字段 / COLUMN	9.0	9.1	9.2	9.3	9.4	9.5	9.6	10	11	12	13	14	15	16	17	18
`locktype`	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–
`waits`	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–
`wait_time`	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–
`fastpath_exceeded`	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–
`stats_reset`	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–	–

9.0 是收录基线；基线中已存在的字段不标记为新增。矩阵按字段名称对齐，重命名显示为旧字段移除与新字段新增。

相邻大版本的变化

PostgreSQL 19 ← 18新增目录

+ locktype+ waits+ wait_time+ fastpath_exceeded+ stats_reset

起始版本 / FROM目标版本 / TO包含描述更新

选择两个版本，查看字段的新增、移除与类型变化。交互比较需要 JavaScript；演化时间线可直接阅读。