Обсуждение: Documentation does not cover multiple WITH in one query
The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/10/static/queries-with.html Description: Hi. I have found [DOC](https://www.postgresql.org/docs/10/static/queries-with.html) it is fine, but did not cover multiple WITH in one query. I found answer only [here](https://stackoverflow.com/a/38137037/4632019) May you please add the example: WITH table1 AS (...), table2 AS (...) SELECT * FROM table1, table2 thank you
On Wed, Aug 22, 2018 at 09:24:52AM +0000, PG Doc comments form wrote: > The following documentation comment has been logged on the website: > > Page: https://www.postgresql.org/docs/10/static/queries-with.html > Description: > > Hi. I have found > [DOC](https://www.postgresql.org/docs/10/static/queries-with.html) > > it is fine, but did not cover multiple WITH in one query. > > I found answer only [here](https://stackoverflow.com/a/38137037/4632019) > > May you please add the example: > > WITH table1 AS (...), table2 AS (...) SELECT * FROM table1, table2 Well, the SELECT manual has: [ WITH [ RECURSIVE ] with_query [, ...] ] and with_query is shown as: with_query_name [ ( column_name [, ...] ) ] AS ( select | values | insert | update | delete ) This is standard SQL. I don't think we are going to be able to show every possible syntax. -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + As you are, so once was I. As I am, so you will be. + + Ancient Roman grave inscription +
Thank you. That is I am looking for. Never thought that 'WITH' syntax is described at 'SELECT'. Will be very helpful if this will be mentioned on this page: https://www.postgresql.org/docs/10/static/queries-with.html For an example: [ WITH [ RECURSIVE ] with_query [, ...] ] and with_query is shown as: with_query_name [ ( column_name [, ...] ) ] AS ( select | values | insert | update | delete ) For full syntax of `WITH` see https://www.postgresql.org/docs/10/static/sql-select.html Thanks. 24.08.2018, 23:30, "Bruce Momjian" <bruce@momjian.us>: > On Wed, Aug 22, 2018 at 09:24:52AM +0000, PG Doc comments form wrote: >> The following documentation comment has been logged on the website: >> >> Page: https://www.postgresql.org/docs/10/static/queries-with.html >> Description: >> >> Hi. I have found >> [DOC](https://www.postgresql.org/docs/10/static/queries-with.html) >> >> it is fine, but did not cover multiple WITH in one query. >> >> I found answer only [here](https://stackoverflow.com/a/38137037/4632019) >> >> May you please add the example: >> >> WITH table1 AS (...), table2 AS (...) SELECT * FROM table1, table2 > > Well, the SELECT manual has: > > [ WITH [ RECURSIVE ] with_query [, ...] ] > > and with_query is shown as: > > with_query_name [ ( column_name [, ...] ) ] AS ( select | values | insert | update | delete ) > > This is standard SQL. I don't think we are going to be able to show > every possible syntax. > > -- > Bruce Momjian <bruce@momjian.us> http://momjian.us > EnterpriseDB http://enterprisedb.com > > + As you are, so once was I. As I am, so you will be. + > + Ancient Roman grave inscription +
On Sun, Aug 26, 2018 at 12:08:15PM +0300, KES wrote: > > Thank you. That is I am looking for. > Never thought that 'WITH' syntax is described at 'SELECT'. > > Will be very helpful if this will be mentioned on this page: https://www.postgresql.org/docs/10/static/queries-with.html > For an example: > > [ WITH [ RECURSIVE ] with_query [, ...] ] > > and with_query is shown as: > > with_query_name [ ( column_name [, ...] ) ] AS ( select | values | insert | update | delete ) > > For full syntax of `WITH` see https://www.postgresql.org/docs/10/static/sql-select.html There is are no syntax layouts on this page or in similar sections in the docs --- they are reserved for the reference pages. I don't think it makes sense to add it here. One odd thing is that WITH can be used with non-SELECT statements, but we only document it in SELECT, which is odd. I think that is because the SQL standard only uses WITH with SELECT. -- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB http://enterprisedb.com + As you are, so once was I. As I am, so you will be. + + Ancient Roman grave inscription +