Re: postgresql how to duplicate rows in result.

On Tue, Feb 14, 2017 at 12:36 PM, Merlin Moncure <mmoncure(at)gmail(dot)com> wrote:
> On Tue, Feb 14, 2017 at 12:04 PM, Alessandro Baggi
> <alessandro(dot)baggi(at)gmail(dot)com> wrote:
>> Hi list,
>> sorry for my english, I will try to example as well. I've a query that joins
>> multiple tables and return a result like:
>>
>> id,customers,phone,code,number
>> 1 , aaaaaaaa,33333,123 , 2
>> 2 , aassdsds,33322,211 , 1
>> 3 , oooooooo,21221,221 , 1
>>
>>
>> I need, where "number" field is > 1, to duplicate the row * N(number field
>> value) with a result like this:
>>
>> id,customers,phone,code,number
>> 1 , aaaaaaaa,33333,123 , 2
>> 1 , aaaaaaaa,33333,123 , 2
>> 2 , aassdsds,33322,211 , 1
>> 3 , oooooooo,21221,221 , 1
>>
>> How I can accomplish to this problem?
>
> SELECT * FROM foo CROSS JOIN LATERAL (1,number);
>
> :-D

oops -- copy/paste error

SELECT * FROM foo CROSS JOIN LATERAL generate_series(1,number);

merlin