[NOVICE] what does t(x) in select x from generate_series(1, 10) as t(x) stand for? - Mailing list pgsql-novice

From john snow
Subject [NOVICE] what does t(x) in select x from generate_series(1, 10) as t(x) stand for?
Date
Msg-id CAE67tvV_G-Fdu=TP8r8NOvGPu6bVAL3h_DcMj2PAW_C4C3dhHw@mail.gmail.com
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Responses Re: [NOVICE] what does t(x) in select x from generate_series(1, 10)as t(x) stand for?  ("David G. Johnston" <david.g.johnston@gmail.com>)
List pgsql-novice
is 
select x from generate_series(1, 10) as t(x);
different from
select x from generate_series(1, 10) as x;

both statements seem to produce the same result in pgAdmin4 (i'm using postresql version 10)

thanks for helping!

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