Hi,
postgres=# SELECT relpages FROM pg_class WHERE relname = 'large';
relpages
-------------
-1804468224
(1 row)
postgres=# \dt+ large
List of relations
Schema | Name | Type | Owner | Size | Description
--------+-------+-------+--------+-------+-------------
public | large | table | andres | 19 TB |
(1 row)
That's nothing for 9.4 anymore, but shouldn't we make pg_class.relpages
a int8 (sounds slightly better than float to me) or somesuch?
I think most calculations actually work out because they're performed
after casting to BlockNumber, but ...
Greetings,
Andres Freund
PS: _mdfd_getseg is considered harmful(). Not fun once you have couple
of hundred gigabytes.
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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