【发布时间】:2014-04-23 11:51:47
【问题描述】:
也许有一些函数可以检查索引和表的填充因子?我已经尝试过 \d+ 但只有基本定义,没有填充因子值:
Index "public.tab1_pkey"
Column | Type | Definition | Storage
--------+--------+------------+---------
id | bigint | id | plain
primary key, btree, for table "public.tab1"
对于表还没有找到任何东西。如果表是使用非默认填充因子创建的:
CREATE TABLE distributors (
did integer,
name varchar(40),
UNIQUE(name) WITH (fillfactor=70)
)
WITH (fillfactor=70);
然后\d+ distributors显示非标准填充因子。
Table "public.distributors"
Column | Type | Modifiers | Storage | Stats target | Description
--------+-----------------------+-----------+----------+--------------+-------------
did | integer | | plain | |
name | character varying(40) | | extended | |
Indexes:
"distributors_name_key" UNIQUE CONSTRAINT, btree (name) WITH (fillfactor=70)
Has OIDs: no
Options: fillfactor=70
但也许有一种方法可以在不解析输出的情况下获取此值?
【问题讨论】:
标签: postgresql fillfactor