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STATISTICS VIEW · 统计视图

pg_stat_wal_receiver

PostgreSQL 官方文档 ↗源码定义 ↗

The pg_stat_wal_receiver view will contain only one row, showing statistics about the WAL receiver from that receiver's connected server.

首次收录 PG 9.6最近收录 PG 19当前字段 15
9.09.19.29.39.49.59.610111213141516171819β3

已与 PostgreSQL 18.6 实例逐字段核对 · 原始实测记录 ↗

字段结构 PostgreSQL 18

pg_stat_wal_receiver
字段 / COLUMN类型 / TYPE说明 / DESCRIPTION
pid integer Process ID of the WAL receiver process
status text Activity status of the WAL receiver process
receive_start_lsn pg_lsn First write-ahead log location used when WAL receiver is started
receive_start_tli integer First timeline number used when WAL receiver is started
written_lsn pg_lsn Last write-ahead log location already received and written to disk, but not flushed. This should not be used for data integrity checks.
flushed_lsn pg_lsn Last write-ahead log location already received and flushed to disk, the initial value of this field being the first log location used when WAL receiver is started
received_tli integer Timeline number of last write-ahead log location received and flushed to disk, the initial value of this field being the timeline number of the first log location used when WAL receiver is started
last_msg_send_time timestamp with time zone Send time of last message received from origin WAL sender
last_msg_receipt_time timestamp with time zone Receipt time of last message received from origin WAL sender
latest_end_lsn pg_lsn Last write-ahead log location reported to origin WAL sender
latest_end_time timestamp with time zone Time of last write-ahead log location reported to origin WAL sender
slot_name text Replication slot name used by this WAL receiver
sender_host text Host of the PostgreSQL instance this WAL receiver is connected to. This can be a host name, an IP address, or a directory path if the connection is via Unix socket. (The path case can be distinguished because it will always be an absolute path, beginning with /.)
sender_port integer Port number of the PostgreSQL instance this WAL receiver is connected to.
conninfo text Connection string used by this WAL receiver, with security-sensitive fields obfuscated.

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。

字段演化矩阵

悬停查看字段类型
存在新增 / 类型或属性变化移除
字段 / COLUMN9.09.19.29.39.49.59.610111213141516171819
pid – – – – – –
status – – – – – –
receive_start_lsn – – – – – –
receive_start_tli – – – – – –
received_lsn – – – – – – − – – – – – –
received_tli – – – – – –
last_msg_send_time – – – – – –
last_msg_receipt_time – – – – – –
latest_end_lsn – – – – – –
latest_end_time – – – – – –
slot_name – – – – – –
conninfo – – – – – –
sender_host – – – – – – – –
sender_port – – – – – – – –
written_lsn – – – – – – – – – –
flushed_lsn – – – – – – – – – –

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。

演化时间线

相邻大版本的变化

PostgreSQL 19 ← 18

1 处字段说明更新

PostgreSQL 13 ← 12

+ written_lsn+ flushed_lsn− received_lsn目录说明更新

PostgreSQL 12 ← 11

目录说明更新

PostgreSQL 11 ← 10

+ sender_host+ sender_port

PostgreSQL 10 ← 9.6

5 处字段说明更新目录说明更新

PostgreSQL 9.6 ← 9.5新增目录

+ pid+ status+ receive_start_lsn+ receive_start_tli+ received_lsn+ received_tli+ last_msg_send_time+ last_msg_receipt_time+ latest_end_lsn+ latest_end_time+ slot_name+ conninfo

比较任意两个版本

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。