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Slow cypher query...
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kiteflo  
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 More options Oct 4 2012, 4:20 pm
From: kiteflo <kite...@gmail.com>
Date: Thu, 4 Oct 2012 13:20:17 -0700 (PDT)
Local: Thurs, Oct 4 2012 4:20 pm
Subject: Slow cypher query...
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Hi guys,

we have a cypher query looking like this, this query is executed within
millis everythings's fine:

START
spat=node:GEO_INDEX('withinDistance:[47.481606,7.7395731,50.0]'),user=node( 19912)
MATCH
offer<-[rr?:REVIEW]-review,spat-[r1:MANUAL_SPATIAL_CONNECT]->loc-[r2:GEOFIE S]->offer,user-[rbm:BOOKMARKED]->bookmark
return spat

As soon as we extend the query with one more relationship the query will
take about 7 seconds...:

START
spat=node:GEO_INDEX('withinDistance:[47.481606,7.7395731,50.0]'),user=node( 19912)
MATCH
offer<-[rr?:REVIEW]-review,spat-[r1:MANUAL_SPATIAL_CONNECT]->loc-[r2:GEOFIE S]->offer,user-[rbm:BOOKMARKED]->bookmark-[rbmc:CATEGORY_LINK]->category
return spat

Theres nothing strange about the CATEGORY_LINK relation and the category
itself is a simple domain structure. How can we find out what's exactly
lacking there? Running the two match queries separetely performs 100% fine
so what could cause this slow down?

Thanx in advance, Florian;


 
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Michael Hunger  
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 More options Oct 4 2012, 4:35 pm
From: Michael Hunger <michael.hun...@neotechnology.com>
Date: Thu, 4 Oct 2012 22:35:29 +0200
Local: Thurs, Oct 4 2012 4:35 pm
Subject: Re: [Neo4j] Slow cypher query...
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What neo4j version are you running right now?

Any way to replace the optional relationship with a path where condition?

WHERE offer<-[rr:REVIEW]-review,

or in general how is the review used?

can you try to split this up into a first part then WITH spat, user and do the second match in the second part of the query?

HTH

Michael

Am 04.10.2012 um 22:20 schrieb kiteflo:


 
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