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How many bytes ahead the prefetcher is looking

此版本暂无所选语言的定义，以下显示原始英文内容。

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pg_stat_recovery_prefetch

Field

wal_distance

SQL type

int

Units named in the field definition

bytes

Reset observation

Time at which these statistics were last reset

documented

true

field

wal_distance

manual path

/docs/18/monitoring-stats.html

signature

SELECT wal_distance FROM pg_catalog.pg_stat_recovery_prefetch;

source only

false

sql type

int

units mentioned

bytes

view

pg_stat_recovery_prefetch