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From Jaime Solano <jdjsol...@gmail.com>
Subject Re: Non-equi joins
Date Wed, 25 Mar 2015 17:25:01 GMT
Thanks for your response, Maryann!

Again, this suggestion is for 4.3 only, right?
On Mar 25, 2015 12:34 PM, "Maryann Xue" <maryann.xue@gmail.com> wrote:

> Actually we do in 4.3, but apparently not in an efficient way. If no equi
> conditions are specified, Phoenix simply does cross join and applies a post
> filter to the cross joined results. And we do not support non-equi
> conditions in ON clause, so non-equi outer join is currently impossible.
> But if you are doing inner joins, you can adjust your query as:
>
> SELECT * FROM T1, T2 WHERE T1.COL1 >= T2.COL2 AND T1.COL1 <= T2.COL3;
>
>
> On Wed, Mar 25, 2015 at 9:29 AM, Jaime Solano <jdjsolano@gmail.com> wrote:
>
>> Hi guys,
>> I'm trying to figure out a way to join two tables with non-equi
>> conditions. Basically, something like:
>> SELECT * FROM T1 LEFT JOIN T2 ON T1.COL1 >= T2.COL2 AND T1.COL1 <=
>> T2.COL3;
>> I'm using Phoenix 4.2.0, which doesn't support non-equi joins.
>> Is this feature supported in version 4.3? If not, is there a workaround
>> to make it work in 4.2.0?
>> Thanks in advance!
>> -Jaime
>>
>
>

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