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From Erick Erickson <>
Subject Re: edismax operators
Date Thu, 02 Apr 2015 16:48:46 GMT
The MM parameter is specific to the handler you set up/use, so it's
really on a per collection basis. Different collections can specify
this however they want.

Or I misunderstand what you're asking..


On Thu, Apr 2, 2015 at 8:59 AM, Davis, Daniel (NIH/NLM) [C]
<> wrote:
> Can the mm parameter be set per clause?    I guess I've ignored it in the past aside
from setting it once to what seemed like a reasonable value.
> That is probably replicated across every collection, which cannot be ideal for relevance.
> -----Original Message-----
> From: Shawn Heisey []
> Sent: Thursday, April 02, 2015 11:13 AM
> To:
> Subject: Re: edismax operators
> On 4/2/2015 8:35 AM, Mahmoud Almokadem wrote:
>> Thank you Jack for your clarifications. I used regular defType and set
>> q.op=AND so all terms without operators are must. How can I use this
>> with edismax?
> The edismax parser is capable of much more granularity than simply AND/OR on the default
operator, through the mm parameter.  If you set q.op to AND, the mm parameter will be set
to 100%.  The mm parameter is EXTREMELY flexible.
> Thanks,
> Shawn

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