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Number of times a block has been written out from a shared or local buffer in order to make it available for another use. In context normal, this counts the number of times a block was evicted from a buffer and replaced with another block. In contexts bulkwrite, bulkread, and vacuum, this counts the number of times a block was evicted from shared buffers in order to add the shared buffer to a separate, size-limited ring buffer for use in a bulk I/O operation.

此版本暂无所选语言的定义，以下显示原始英文内容。

View

pg_stat_io

Field

evictions

SQL type

bigint

Units named in the field definition

Not specified

Reset observation

Time at which these statistics were last reset.

documented

true

field

evictions

manual path

/docs/18/monitoring-stats.html

signature

SELECT evictions FROM pg_catalog.pg_stat_io;

source only

false

sql type

bigint

units mentioned

未知

view

pg_stat_io