DOC not so clear

From: PG Doc comments form <noreply(at)postgresql(dot)org>
To: pgsql-docs(at)lists(dot)postgresql(dot)org
Cc: kes-kes(at)yandex(dot)ru
Subject: DOC not so clear
Date: 2019-01-14 14:42:35
Message-ID: 154747695538.22759.12913505368136831904@wrigleys.postgresql.org
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The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/11/queries-table-expressions.html
Description:

Hi.

https://www.postgresql.org/docs/current/queries-table-expressions.html#QUERIES-LATERAL
>The resulting row(s) are joined as usual with the rows they were computed
from.

Here is not so clear what 'joined as usual' mean.

Probably DOC should explicitly say that if LATERAL function return empty set
then current row is excluded from result set

Please clarify doc a bit.

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