Re: how can I get the length of columns of a table by system tables/views
От | Raghavendra |
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Тема | Re: how can I get the length of columns of a table by system tables/views |
Дата | |
Msg-id | CA+h6AhhcnXmvDPXk2XzqRY8W7J+WKmALSen_rMcXT_38=P3_Sw@mail.gmail.com обсуждение исходный текст |
Ответ на | how can I get the length of columns of a table by system tables/views (shuaixf <shuaixf@gmail.com>) |
Ответы |
Re: how can I get the length of columns of a table by system tables/views
|
Список | pgsql-admin |
For example:
CREATE TABLE tb(name varchar(32));
You can get this with System functions.
select pg_column_size(name) from tb;
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Regards,
Raghavendra
EnterpriseDB Corporation
On Wed, Sep 7, 2011 at 8:50 PM, shuaixf <shuaixf@gmail.com> wrote:
According to pg_class, pg_attribute, pg_type, I can get the tablename,
column name, column type
however, how to get the length of columns of a table by system tables/views?
Thanks!
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