Re: schema design for related fields
I'd think that facet.query would work for you, something like: facet=truefacet.query=FareJanStandard:[price1 TO price2]facet.query:fareJanStandard[price2 TO price3] You can string as many facet.query clauses as you want, across as many fields as you want, they're all independent and will get their own sections in the response. Best Erick On Wed, Dec 1, 2010 at 4:55 AM, lee carroll lee.a.carr...@googlemail.comwrote: Hi I've built a schema for a proof of concept and it is all working fairly fine, niave maybe but fine. However I think we might run into trouble in the future if we ever use facets. The data models train destination city routes from a origin city: Doc:City Name: cityname [uniq key] CityType: city type values [nine possible values so good for faceting] ... [other city attricbutes which relate directy to the doc unique key] all have limited vocab so good for faceting FareJanStandard:cheapest standard fare in january(float value) FareJanFirst:cheapest first class fare in january(float value) FareFebStandard:cheapest standard fare in feb(float value) FareFebFirst:cheapest first fare in feb(float value) . etc The question is how would i best facet fare price? The desire is to return number of citys with jan prices in a set of ranges etc number of citys with first prices in a set of ranges etc install is 1.4.1 running in weblogic Any ideas ? Lee C
Re: schema design for related fields
Hi Erick, so if i understand you we could do something like: if Jan is selected in the user interface and we have 10 price ranges query would be 20 cluases in the query (10 * 2 fare clases) if first is selected in the user interface and we have 10 price ranges query would be 120 cluases (12 months * 10 price ranges) if first and jan selected with 10 price ranges query would be 10 cluases if we required facets to be returned for all price combinations we'd need to supply 240 cluases the user interface would also need to collate the individual fields into meaningful aggragates for the user (ie numbers by month, numbers by fare class) have I understood or missed the point (i usually have) On 1 December 2010 15:00, Erick Erickson erickerick...@gmail.com wrote: I'd think that facet.query would work for you, something like: facet=truefacet.query=FareJanStandard:[price1 TO price2]facet.query:fareJanStandard[price2 TO price3] You can string as many facet.query clauses as you want, across as many fields as you want, they're all independent and will get their own sections in the response. Best Erick On Wed, Dec 1, 2010 at 4:55 AM, lee carroll lee.a.carr...@googlemail.com wrote: Hi I've built a schema for a proof of concept and it is all working fairly fine, niave maybe but fine. However I think we might run into trouble in the future if we ever use facets. The data models train destination city routes from a origin city: Doc:City Name: cityname [uniq key] CityType: city type values [nine possible values so good for faceting] ... [other city attricbutes which relate directy to the doc unique key] all have limited vocab so good for faceting FareJanStandard:cheapest standard fare in january(float value) FareJanFirst:cheapest first class fare in january(float value) FareFebStandard:cheapest standard fare in feb(float value) FareFebFirst:cheapest first fare in feb(float value) . etc The question is how would i best facet fare price? The desire is to return number of citys with jan prices in a set of ranges etc number of citys with first prices in a set of ranges etc install is 1.4.1 running in weblogic Any ideas ? Lee C
Re: schema design for related fields
if first is selected in the user interface and we have 10 price ranges query would be 120 cluases (12 months * 10 price ranges) What would you intend to do with the returned facet-results in this situation? I doubt you want to display 12 categories (1 for each month) ? When a user hasn't selected a date, perhaps it would be more useful to show the cheapest fare regardless of month and facet on that? This would involve introducing 2 new fields: FareDateDontCareStandard, FareDateDontCareFirst Populate these fields on indexing time, by calculating the cheapest fares over all months. This then results in every query having to support at most 20 price ranges (10 for normal and 10 for first class) HTH, Geert-Jan 2010/12/1 lee carroll lee.a.carr...@googlemail.com Hi Erick, so if i understand you we could do something like: if Jan is selected in the user interface and we have 10 price ranges query would be 20 cluases in the query (10 * 2 fare clases) if first is selected in the user interface and we have 10 price ranges query would be 120 cluases (12 months * 10 price ranges) if first and jan selected with 10 price ranges query would be 10 cluases if we required facets to be returned for all price combinations we'd need to supply 240 cluases the user interface would also need to collate the individual fields into meaningful aggragates for the user (ie numbers by month, numbers by fare class) have I understood or missed the point (i usually have) On 1 December 2010 15:00, Erick Erickson erickerick...@gmail.com wrote: I'd think that facet.query would work for you, something like: facet=truefacet.query=FareJanStandard:[price1 TO price2]facet.query:fareJanStandard[price2 TO price3] You can string as many facet.query clauses as you want, across as many fields as you want, they're all independent and will get their own sections in the response. Best Erick On Wed, Dec 1, 2010 at 4:55 AM, lee carroll lee.a.carr...@googlemail.com wrote: Hi I've built a schema for a proof of concept and it is all working fairly fine, niave maybe but fine. However I think we might run into trouble in the future if we ever use facets. The data models train destination city routes from a origin city: Doc:City Name: cityname [uniq key] CityType: city type values [nine possible values so good for faceting] ... [other city attricbutes which relate directy to the doc unique key] all have limited vocab so good for faceting FareJanStandard:cheapest standard fare in january(float value) FareJanFirst:cheapest first class fare in january(float value) FareFebStandard:cheapest standard fare in feb(float value) FareFebFirst:cheapest first fare in feb(float value) . etc The question is how would i best facet fare price? The desire is to return number of citys with jan prices in a set of ranges etc number of citys with first prices in a set of ranges etc install is 1.4.1 running in weblogic Any ideas ? Lee C
Re: schema design for related fields
Hmmm, that's getting to be a pretty clunky query sure enough. Now you're going to have to insure that HTTP request that long get through and stuff like that I'm reaching a bit here, but you can facet on a tokenized field. Although that's not often done there's no prohibition against it. So, what if you had just one field for each city that contained some abstract information about your fares etc. Something like janstdfareclass1 jancheapfareclass3 febstdfareclass6 Now just facet on that field? Not #values# in that field, just the field itself. You'd then have to make those into human-readable text, but that would considerably simplify your query. Probably only works if your user is selecting from pre-defined ranges, if they expect to put in arbitrary ranges this scheme probably wouldn't work... Best Erick On Wed, Dec 1, 2010 at 10:22 AM, lee carroll lee.a.carr...@googlemail.comwrote: Hi Erick, so if i understand you we could do something like: if Jan is selected in the user interface and we have 10 price ranges query would be 20 cluases in the query (10 * 2 fare clases) if first is selected in the user interface and we have 10 price ranges query would be 120 cluases (12 months * 10 price ranges) if first and jan selected with 10 price ranges query would be 10 cluases if we required facets to be returned for all price combinations we'd need to supply 240 cluases the user interface would also need to collate the individual fields into meaningful aggragates for the user (ie numbers by month, numbers by fare class) have I understood or missed the point (i usually have) On 1 December 2010 15:00, Erick Erickson erickerick...@gmail.com wrote: I'd think that facet.query would work for you, something like: facet=truefacet.query=FareJanStandard:[price1 TO price2]facet.query:fareJanStandard[price2 TO price3] You can string as many facet.query clauses as you want, across as many fields as you want, they're all independent and will get their own sections in the response. Best Erick On Wed, Dec 1, 2010 at 4:55 AM, lee carroll lee.a.carr...@googlemail.com wrote: Hi I've built a schema for a proof of concept and it is all working fairly fine, niave maybe but fine. However I think we might run into trouble in the future if we ever use facets. The data models train destination city routes from a origin city: Doc:City Name: cityname [uniq key] CityType: city type values [nine possible values so good for faceting] ... [other city attricbutes which relate directy to the doc unique key] all have limited vocab so good for faceting FareJanStandard:cheapest standard fare in january(float value) FareJanFirst:cheapest first class fare in january(float value) FareFebStandard:cheapest standard fare in feb(float value) FareFebFirst:cheapest first fare in feb(float value) . etc The question is how would i best facet fare price? The desire is to return number of citys with jan prices in a set of ranges etc number of citys with first prices in a set of ranges etc install is 1.4.1 running in weblogic Any ideas ? Lee C
Re: schema design for related fields
Geert The UI would be something like: user selections for the facet price max price: £100 fare class: any city attributes facet cityattribute1 etc: xxx results displayed something like Facet price Standard fares [10] First fares [3] in Jan [9] in feb [10] in march [1] etc is this compatible with your approach ? Erick the price is an interval scale ie a fare can be any value (not high, low, medium etc) How sensible would the following approach be index city docs with fields only related to the city unique key in the same index also index fare docs which would be something like: Fare: cityID: xxx Fareclass:standard FareMonth: Jan FarePrice: 100 the query would be something like: q=FarePrice:[* TO 100] FareMonth:Jan fl=cityID returning facets for FareClass and FareMonth. hold on this will not facet city docs correctly. sorry thasts not going to work. On 1 December 2010 16:25, Erick Erickson erickerick...@gmail.com wrote: Hmmm, that's getting to be a pretty clunky query sure enough. Now you're going to have to insure that HTTP request that long get through and stuff like that I'm reaching a bit here, but you can facet on a tokenized field. Although that's not often done there's no prohibition against it. So, what if you had just one field for each city that contained some abstract information about your fares etc. Something like janstdfareclass1 jancheapfareclass3 febstdfareclass6 Now just facet on that field? Not #values# in that field, just the field itself. You'd then have to make those into human-readable text, but that would considerably simplify your query. Probably only works if your user is selecting from pre-defined ranges, if they expect to put in arbitrary ranges this scheme probably wouldn't work... Best Erick On Wed, Dec 1, 2010 at 10:22 AM, lee carroll lee.a.carr...@googlemail.comwrote: Hi Erick, so if i understand you we could do something like: if Jan is selected in the user interface and we have 10 price ranges query would be 20 cluases in the query (10 * 2 fare clases) if first is selected in the user interface and we have 10 price ranges query would be 120 cluases (12 months * 10 price ranges) if first and jan selected with 10 price ranges query would be 10 cluases if we required facets to be returned for all price combinations we'd need to supply 240 cluases the user interface would also need to collate the individual fields into meaningful aggragates for the user (ie numbers by month, numbers by fare class) have I understood or missed the point (i usually have) On 1 December 2010 15:00, Erick Erickson erickerick...@gmail.com wrote: I'd think that facet.query would work for you, something like: facet=truefacet.query=FareJanStandard:[price1 TO price2]facet.query:fareJanStandard[price2 TO price3] You can string as many facet.query clauses as you want, across as many fields as you want, they're all independent and will get their own sections in the response. Best Erick On Wed, Dec 1, 2010 at 4:55 AM, lee carroll lee.a.carr...@googlemail.com wrote: Hi I've built a schema for a proof of concept and it is all working fairly fine, niave maybe but fine. However I think we might run into trouble in the future if we ever use facets. The data models train destination city routes from a origin city: Doc:City Name: cityname [uniq key] CityType: city type values [nine possible values so good for faceting] ... [other city attricbutes which relate directy to the doc unique key] all have limited vocab so good for faceting FareJanStandard:cheapest standard fare in january(float value) FareJanFirst:cheapest first class fare in january(float value) FareFebStandard:cheapest standard fare in feb(float value) FareFebFirst:cheapest first fare in feb(float value) . etc The question is how would i best facet fare price? The desire is to return number of citys with jan prices in a set of ranges etc number of citys with first prices in a set of ranges etc install is 1.4.1 running in weblogic Any ideas ? Lee C
Re: schema design for related fields
Sorry Geert missed of the price value bit from the user interface so we'd display Facet price Standard fares [10] First fares [3] When traveling in Jan [9] in feb [10] in march [1] Fare Price 0 - 25 : [20] 25 - 50: [10] 50 - 100 [2] cheers lee c On 1 December 2010 17:00, lee carroll lee.a.carr...@googlemail.com wrote: Geert The UI would be something like: user selections for the facet price max price: £100 fare class: any city attributes facet cityattribute1 etc: xxx results displayed something like Facet price Standard fares [10] First fares [3] in Jan [9] in feb [10] in march [1] etc is this compatible with your approach ? Erick the price is an interval scale ie a fare can be any value (not high, low, medium etc) How sensible would the following approach be index city docs with fields only related to the city unique key in the same index also index fare docs which would be something like: Fare: cityID: xxx Fareclass:standard FareMonth: Jan FarePrice: 100 the query would be something like: q=FarePrice:[* TO 100] FareMonth:Jan fl=cityID returning facets for FareClass and FareMonth. hold on this will not facet city docs correctly. sorry thasts not going to work. On 1 December 2010 16:25, Erick Erickson erickerick...@gmail.com wrote: Hmmm, that's getting to be a pretty clunky query sure enough. Now you're going to have to insure that HTTP request that long get through and stuff like that I'm reaching a bit here, but you can facet on a tokenized field. Although that's not often done there's no prohibition against it. So, what if you had just one field for each city that contained some abstract information about your fares etc. Something like janstdfareclass1 jancheapfareclass3 febstdfareclass6 Now just facet on that field? Not #values# in that field, just the field itself. You'd then have to make those into human-readable text, but that would considerably simplify your query. Probably only works if your user is selecting from pre-defined ranges, if they expect to put in arbitrary ranges this scheme probably wouldn't work... Best Erick On Wed, Dec 1, 2010 at 10:22 AM, lee carroll lee.a.carr...@googlemail.comwrote: Hi Erick, so if i understand you we could do something like: if Jan is selected in the user interface and we have 10 price ranges query would be 20 cluases in the query (10 * 2 fare clases) if first is selected in the user interface and we have 10 price ranges query would be 120 cluases (12 months * 10 price ranges) if first and jan selected with 10 price ranges query would be 10 cluases if we required facets to be returned for all price combinations we'd need to supply 240 cluases the user interface would also need to collate the individual fields into meaningful aggragates for the user (ie numbers by month, numbers by fare class) have I understood or missed the point (i usually have) On 1 December 2010 15:00, Erick Erickson erickerick...@gmail.com wrote: I'd think that facet.query would work for you, something like: facet=truefacet.query=FareJanStandard:[price1 TO price2]facet.query:fareJanStandard[price2 TO price3] You can string as many facet.query clauses as you want, across as many fields as you want, they're all independent and will get their own sections in the response. Best Erick On Wed, Dec 1, 2010 at 4:55 AM, lee carroll lee.a.carr...@googlemail.com wrote: Hi I've built a schema for a proof of concept and it is all working fairly fine, niave maybe but fine. However I think we might run into trouble in the future if we ever use facets. The data models train destination city routes from a origin city: Doc:City Name: cityname [uniq key] CityType: city type values [nine possible values so good for faceting] ... [other city attricbutes which relate directy to the doc unique key] all have limited vocab so good for faceting FareJanStandard:cheapest standard fare in january(float value) FareJanFirst:cheapest first class fare in january(float value) FareFebStandard:cheapest standard fare in feb(float value) FareFebFirst:cheapest first fare in feb(float value) . etc The question is how would i best facet fare price? The desire is to return number of citys with jan prices in a set of ranges etc number of citys with first prices in a set of ranges etc install is 1.4.1 running in weblogic Any ideas ? Lee C
Re: schema design for related fields
Ok longer answer than anticipated (and good conceptual practice ;-) Yeah I belief that would work if I understand correctly that: 'in Jan [9] in feb [10] in march [1]' has nothing to do with pricing, but only with availability? If so you could seperate it out as two seperate issues: 1. ) showing pricing (based on context) 2. ) showing availabilities (based on context) For 1.) you get 39 pricefields ([jan,feb,..,dec,dc] * [standard,first,dc]) note: 'dc' indicates 'don't care. depending on the context you query the correct pricefield to populate the price facet-values. for discussion lets call the fields: _p[fare][date]. IN other words the price field for no preference at all would become: _pdcdc For 2.) define a multivalued field 'FaresPerDate 'which indicate availability, which is used to display: A) Standard fares [10] First fares [3] B) in Jan [9] in feb [10] in march [1] A) depends on your selection (or dont caring) about a month B) vice versa depends on your selection (or dont caring) about a fare type given all possible date values: [jan,feb,..dec,dontcare] given all possible fare values:[standard,first,dontcare] FaresPerDate consists of multiple values per document where each value indicates the availability of a combination of 'fare' and 'date': (standardJan,firstJan,DCjan...,standardJan,firstDec,DCdec,standardDC,firstDC,DCDC) Note that the nr of possible values = 39. Example: 1. ) the user hasn't selected any preference: q=*:*facet.field:FaresPerDatefacet.query=_pdcdc:[0 TO 20]facet.query=_pdcdc:[20 TO 40], etc. in the client you have to make sure to select the correct values of 'FaresPerDate' for display: in this case: Standard fares [10] -- FaresPerDate.standardDC First fares [3] -- FaresPerDate.firstDC in Jan [9] - FaresPerDate.DCJan in feb [10] - FaresPerDate.DCFeb in march [1]- FaresPerDate.DCMarch 2) the user has selected January q=*:*facet.field:FaresPerDatefq=FaresPerDate:DCJanfacet.query=_pDCJan:[0 TO 20]facet.query=_pDCJan:[20 TO 40] Standard fares [10] -- FaresPerDate.standardJan First fares [3] -- FaresPerDate.firstJan in Jan [9] - FaresPerDate.DCJan in feb [10] - FaresPerDate.DCFeb in march [1]- FaresPerDate.DCMarch Hope that helps, Geert-Jan 2010/12/1 lee carroll lee.a.carr...@googlemail.com Sorry Geert missed of the price value bit from the user interface so we'd display Facet price Standard fares [10] First fares [3] When traveling in Jan [9] in feb [10] in march [1] Fare Price 0 - 25 : [20] 25 - 50: [10] 50 - 100 [2] cheers lee c On 1 December 2010 17:00, lee carroll lee.a.carr...@googlemail.com wrote: Geert The UI would be something like: user selections for the facet price max price: £100 fare class: any city attributes facet cityattribute1 etc: xxx results displayed something like Facet price Standard fares [10] First fares [3] in Jan [9] in feb [10] in march [1] etc is this compatible with your approach ? Erick the price is an interval scale ie a fare can be any value (not high, low, medium etc) How sensible would the following approach be index city docs with fields only related to the city unique key in the same index also index fare docs which would be something like: Fare: cityID: xxx Fareclass:standard FareMonth: Jan FarePrice: 100 the query would be something like: q=FarePrice:[* TO 100] FareMonth:Jan fl=cityID returning facets for FareClass and FareMonth. hold on this will not facet city docs correctly. sorry thasts not going to work. On 1 December 2010 16:25, Erick Erickson erickerick...@gmail.com wrote: Hmmm, that's getting to be a pretty clunky query sure enough. Now you're going to have to insure that HTTP request that long get through and stuff like that I'm reaching a bit here, but you can facet on a tokenized field. Although that's not often done there's no prohibition against it. So, what if you had just one field for each city that contained some abstract information about your fares etc. Something like janstdfareclass1 jancheapfareclass3 febstdfareclass6 Now just facet on that field? Not #values# in that field, just the field itself. You'd then have to make those into human-readable text, but that would considerably simplify your query. Probably only works if your user is selecting from pre-defined ranges, if they expect to put in arbitrary ranges this scheme probably wouldn't work... Best Erick On Wed, Dec 1, 2010 at 10:22 AM, lee carroll lee.a.carr...@googlemail.comwrote: Hi Erick, so if i understand you we could do something like: if Jan is selected in the user interface and we have 10 price ranges query would be 20 cluases in the query (10 * 2 fare clases) if first is selected in the user interface and we have 10 price ranges query would be 120 cluases (12 months * 10 price ranges) if first and jan selected
Re: schema design for related fields
Also, filtering and sorting on price can be done as well. Just be sure to use the correct price- field. Geert-Jan 2010/12/1 Geert-Jan Brits gbr...@gmail.com Ok longer answer than anticipated (and good conceptual practice ;-) Yeah I belief that would work if I understand correctly that: 'in Jan [9] in feb [10] in march [1]' has nothing to do with pricing, but only with availability? If so you could seperate it out as two seperate issues: 1. ) showing pricing (based on context) 2. ) showing availabilities (based on context) For 1.) you get 39 pricefields ([jan,feb,..,dec,dc] * [standard,first,dc]) note: 'dc' indicates 'don't care. depending on the context you query the correct pricefield to populate the price facet-values. for discussion lets call the fields: _p[fare][date]. IN other words the price field for no preference at all would become: _pdcdc For 2.) define a multivalued field 'FaresPerDate 'which indicate availability, which is used to display: A) Standard fares [10] First fares [3] B) in Jan [9] in feb [10] in march [1] A) depends on your selection (or dont caring) about a month B) vice versa depends on your selection (or dont caring) about a fare type given all possible date values: [jan,feb,..dec,dontcare] given all possible fare values:[standard,first,dontcare] FaresPerDate consists of multiple values per document where each value indicates the availability of a combination of 'fare' and 'date': (standardJan,firstJan,DCjan...,standardJan,firstDec,DCdec,standardDC,firstDC,DCDC) Note that the nr of possible values = 39. Example: 1. ) the user hasn't selected any preference: q=*:*facet.field:FaresPerDatefacet.query=_pdcdc:[0 TO 20]facet.query=_pdcdc:[20 TO 40], etc. in the client you have to make sure to select the correct values of 'FaresPerDate' for display: in this case: Standard fares [10] -- FaresPerDate.standardDC First fares [3] -- FaresPerDate.firstDC in Jan [9] - FaresPerDate.DCJan in feb [10] - FaresPerDate.DCFeb in march [1]- FaresPerDate.DCMarch 2) the user has selected January q=*:*facet.field:FaresPerDatefq=FaresPerDate:DCJanfacet.query=_pDCJan:[0 TO 20]facet.query=_pDCJan:[20 TO 40] Standard fares [10] -- FaresPerDate.standardJan First fares [3] -- FaresPerDate.firstJan in Jan [9] - FaresPerDate.DCJan in feb [10] - FaresPerDate.DCFeb in march [1]- FaresPerDate.DCMarch Hope that helps, Geert-Jan 2010/12/1 lee carroll lee.a.carr...@googlemail.com Sorry Geert missed of the price value bit from the user interface so we'd display Facet price Standard fares [10] First fares [3] When traveling in Jan [9] in feb [10] in march [1] Fare Price 0 - 25 : [20] 25 - 50: [10] 50 - 100 [2] cheers lee c On 1 December 2010 17:00, lee carroll lee.a.carr...@googlemail.com wrote: Geert The UI would be something like: user selections for the facet price max price: £100 fare class: any city attributes facet cityattribute1 etc: xxx results displayed something like Facet price Standard fares [10] First fares [3] in Jan [9] in feb [10] in march [1] etc is this compatible with your approach ? Erick the price is an interval scale ie a fare can be any value (not high, low, medium etc) How sensible would the following approach be index city docs with fields only related to the city unique key in the same index also index fare docs which would be something like: Fare: cityID: xxx Fareclass:standard FareMonth: Jan FarePrice: 100 the query would be something like: q=FarePrice:[* TO 100] FareMonth:Jan fl=cityID returning facets for FareClass and FareMonth. hold on this will not facet city docs correctly. sorry thasts not going to work. On 1 December 2010 16:25, Erick Erickson erickerick...@gmail.com wrote: Hmmm, that's getting to be a pretty clunky query sure enough. Now you're going to have to insure that HTTP request that long get through and stuff like that I'm reaching a bit here, but you can facet on a tokenized field. Although that's not often done there's no prohibition against it. So, what if you had just one field for each city that contained some abstract information about your fares etc. Something like janstdfareclass1 jancheapfareclass3 febstdfareclass6 Now just facet on that field? Not #values# in that field, just the field itself. You'd then have to make those into human-readable text, but that would considerably simplify your query. Probably only works if your user is selecting from pre-defined ranges, if they expect to put in arbitrary ranges this scheme probably wouldn't work... Best Erick On Wed, Dec 1, 2010 at 10:22 AM, lee carroll lee.a.carr...@googlemail.comwrote: Hi Erick, so if i understand you we could do something like: if Jan is selected in the user interface and we have 10 price ranges query
Re: schema design for related fields
Hi Geert, Ok I think I follow. the magic is in the multi-valued field. The only danger would be complexity if we allow users to multi select months/prices/fare classes. For example they can search for first prices in jan, april and november. I think what you describe is possible in this case just complicated. I'll see if i can hack some facets into the proto type tommorrow. Thanks for your help Lee C On 1 December 2010 17:57, Geert-Jan Brits gbr...@gmail.com wrote: Ok longer answer than anticipated (and good conceptual practice ;-) Yeah I belief that would work if I understand correctly that: 'in Jan [9] in feb [10] in march [1]' has nothing to do with pricing, but only with availability? If so you could seperate it out as two seperate issues: 1. ) showing pricing (based on context) 2. ) showing availabilities (based on context) For 1.) you get 39 pricefields ([jan,feb,..,dec,dc] * [standard,first,dc]) note: 'dc' indicates 'don't care. depending on the context you query the correct pricefield to populate the price facet-values. for discussion lets call the fields: _p[fare][date]. IN other words the price field for no preference at all would become: _pdcdc For 2.) define a multivalued field 'FaresPerDate 'which indicate availability, which is used to display: A) Standard fares [10] First fares [3] B) in Jan [9] in feb [10] in march [1] A) depends on your selection (or dont caring) about a month B) vice versa depends on your selection (or dont caring) about a fare type given all possible date values: [jan,feb,..dec,dontcare] given all possible fare values:[standard,first,dontcare] FaresPerDate consists of multiple values per document where each value indicates the availability of a combination of 'fare' and 'date': (standardJan,firstJan,DCjan...,standardJan,firstDec,DCdec,standardDC,firstDC,DCDC) Note that the nr of possible values = 39. Example: 1. ) the user hasn't selected any preference: q=*:*facet.field:FaresPerDatefacet.query=_pdcdc:[0 TO 20]facet.query=_pdcdc:[20 TO 40], etc. in the client you have to make sure to select the correct values of 'FaresPerDate' for display: in this case: Standard fares [10] -- FaresPerDate.standardDC First fares [3] -- FaresPerDate.firstDC in Jan [9] - FaresPerDate.DCJan in feb [10] - FaresPerDate.DCFeb in march [1]- FaresPerDate.DCMarch 2) the user has selected January q=*:*facet.field:FaresPerDatefq=FaresPerDate:DCJanfacet.query=_pDCJan:[0 TO 20]facet.query=_pDCJan:[20 TO 40] Standard fares [10] -- FaresPerDate.standardJan First fares [3] -- FaresPerDate.firstJan in Jan [9] - FaresPerDate.DCJan in feb [10] - FaresPerDate.DCFeb in march [1]- FaresPerDate.DCMarch Hope that helps, Geert-Jan 2010/12/1 lee carroll lee.a.carr...@googlemail.com Sorry Geert missed of the price value bit from the user interface so we'd display Facet price Standard fares [10] First fares [3] When traveling in Jan [9] in feb [10] in march [1] Fare Price 0 - 25 : [20] 25 - 50: [10] 50 - 100 [2] cheers lee c On 1 December 2010 17:00, lee carroll lee.a.carr...@googlemail.com wrote: Geert The UI would be something like: user selections for the facet price max price: £100 fare class: any city attributes facet cityattribute1 etc: xxx results displayed something like Facet price Standard fares [10] First fares [3] in Jan [9] in feb [10] in march [1] etc is this compatible with your approach ? Erick the price is an interval scale ie a fare can be any value (not high, low, medium etc) How sensible would the following approach be index city docs with fields only related to the city unique key in the same index also index fare docs which would be something like: Fare: cityID: xxx Fareclass:standard FareMonth: Jan FarePrice: 100 the query would be something like: q=FarePrice:[* TO 100] FareMonth:Jan fl=cityID returning facets for FareClass and FareMonth. hold on this will not facet city docs correctly. sorry thasts not going to work. On 1 December 2010 16:25, Erick Erickson erickerick...@gmail.com wrote: Hmmm, that's getting to be a pretty clunky query sure enough. Now you're going to have to insure that HTTP request that long get through and stuff like that I'm reaching a bit here, but you can facet on a tokenized field. Although that's not often done there's no prohibition against it. So, what if you had just one field for each city that contained some abstract information about your fares etc. Something like janstdfareclass1 jancheapfareclass3 febstdfareclass6 Now just facet on that field? Not #values# in that field, just the field itself. You'd then have to make those into human-readable text, but that would considerably simplify your query. Probably only
Re: schema design for related fields
Indeed, selecting the best price for January OR April OR November and sorting on it isn't possible with this solution (if that's what you mean). However, any combination of selecting 1 month and/or 1 price-range and/or 1 fare-type IS possible. 2010/12/1 lee carroll lee.a.carr...@googlemail.com Hi Geert, Ok I think I follow. the magic is in the multi-valued field. The only danger would be complexity if we allow users to multi select months/prices/fare classes. For example they can search for first prices in jan, april and november. I think what you describe is possible in this case just complicated. I'll see if i can hack some facets into the proto type tommorrow. Thanks for your help Lee C On 1 December 2010 17:57, Geert-Jan Brits gbr...@gmail.com wrote: Ok longer answer than anticipated (and good conceptual practice ;-) Yeah I belief that would work if I understand correctly that: 'in Jan [9] in feb [10] in march [1]' has nothing to do with pricing, but only with availability? If so you could seperate it out as two seperate issues: 1. ) showing pricing (based on context) 2. ) showing availabilities (based on context) For 1.) you get 39 pricefields ([jan,feb,..,dec,dc] * [standard,first,dc]) note: 'dc' indicates 'don't care. depending on the context you query the correct pricefield to populate the price facet-values. for discussion lets call the fields: _p[fare][date]. IN other words the price field for no preference at all would become: _pdcdc For 2.) define a multivalued field 'FaresPerDate 'which indicate availability, which is used to display: A) Standard fares [10] First fares [3] B) in Jan [9] in feb [10] in march [1] A) depends on your selection (or dont caring) about a month B) vice versa depends on your selection (or dont caring) about a fare type given all possible date values: [jan,feb,..dec,dontcare] given all possible fare values:[standard,first,dontcare] FaresPerDate consists of multiple values per document where each value indicates the availability of a combination of 'fare' and 'date': (standardJan,firstJan,DCjan...,standardJan,firstDec,DCdec,standardDC,firstDC,DCDC) Note that the nr of possible values = 39. Example: 1. ) the user hasn't selected any preference: q=*:*facet.field:FaresPerDatefacet.query=_pdcdc:[0 TO 20]facet.query=_pdcdc:[20 TO 40], etc. in the client you have to make sure to select the correct values of 'FaresPerDate' for display: in this case: Standard fares [10] -- FaresPerDate.standardDC First fares [3] -- FaresPerDate.firstDC in Jan [9] - FaresPerDate.DCJan in feb [10] - FaresPerDate.DCFeb in march [1]- FaresPerDate.DCMarch 2) the user has selected January q=*:*facet.field:FaresPerDatefq=FaresPerDate:DCJanfacet.query=_pDCJan:[0 TO 20]facet.query=_pDCJan:[20 TO 40] Standard fares [10] -- FaresPerDate.standardJan First fares [3] -- FaresPerDate.firstJan in Jan [9] - FaresPerDate.DCJan in feb [10] - FaresPerDate.DCFeb in march [1]- FaresPerDate.DCMarch Hope that helps, Geert-Jan 2010/12/1 lee carroll lee.a.carr...@googlemail.com Sorry Geert missed of the price value bit from the user interface so we'd display Facet price Standard fares [10] First fares [3] When traveling in Jan [9] in feb [10] in march [1] Fare Price 0 - 25 : [20] 25 - 50: [10] 50 - 100 [2] cheers lee c On 1 December 2010 17:00, lee carroll lee.a.carr...@googlemail.com wrote: Geert The UI would be something like: user selections for the facet price max price: £100 fare class: any city attributes facet cityattribute1 etc: xxx results displayed something like Facet price Standard fares [10] First fares [3] in Jan [9] in feb [10] in march [1] etc is this compatible with your approach ? Erick the price is an interval scale ie a fare can be any value (not high, low, medium etc) How sensible would the following approach be index city docs with fields only related to the city unique key in the same index also index fare docs which would be something like: Fare: cityID: xxx Fareclass:standard FareMonth: Jan FarePrice: 100 the query would be something like: q=FarePrice:[* TO 100] FareMonth:Jan fl=cityID returning facets for FareClass and FareMonth. hold on this will not facet city docs correctly. sorry thasts not going to work. On 1 December 2010 16:25, Erick Erickson erickerick...@gmail.com wrote: Hmmm, that's getting to be a pretty clunky query sure enough. Now you're going to have to insure that HTTP request that long get through and stuff like that I'm reaching a bit here, but you can facet on a tokenized field. Although
