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Re: PostgreSQL CHARACTER VARYING vs CHARACTER VARYING (Length) - Mailing list pgsql-admin

From Holger Jakobs
Subject Re: PostgreSQL CHARACTER VARYING vs CHARACTER VARYING (Length)
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Msg-id cfa5d279-0d2e-38ad-fa7f-3a2788120a83@jakobs.com
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In response to PostgreSQL CHARACTER VARYING vs CHARACTER VARYING (Length)  (Rajin Raj <rajin.raj@opsveda.com>)
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No, there is no impact.

Am 28.04.20 um 11:22 schrieb Rajin Raj:
Is there any impact of using the character varying without providing the length while creating tables? 
I have created two tables and inserted 1M records. But I don't see any difference in pg_class. (size, relpage)

create table test_1(name varchar);
create table test_2(name varchar(50));

insert into test_1 ... 10M records
insert into test_2 ... 10M records

vacuum (full,analyze) db_size_test_1;
vacuum (full,analyze) db_size_test_2;

Which option is recommended? 

Regards,
Rajin 
-- 
Holger Jakobs, Bergisch Gladbach, Tel. +49-178-9759012

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