Let's say I have 4 fields: field1,field2,field3 and boost1 and a boost function f. I want to obtain a score field1_score+field2_score*f(boost1)+field3_score*f(boost1) which should look like q=field1:value1 OR (field2:value2 OR field3:value3)^f(boost1), but Solr complains that its invalid and returns an Lexical error.
The current solr query look like: defType=edismax&q=field1:value1 OR field2:value2 OR field3:value3&boost=f(boost1). But in this way, the value from boost section will also have effect on the score of field1:value1 makes it equals to field1_score*f(boost1)+field2_score*f(boost1)+field3_score*f(boost1).
I've looked around for solution for this for a while but failed to find one. Any help is appreciated!
You can use the query function and other Solr functions to create any custom scoring you want.
For example you can do:
q=*:*
bf=sum(query($q1),mul(query($q2),${boost1}),mul(query($q3),${boost1}))
q1=field1:value1
q2=field2:value2
q3=field3:value3
boost1=5
boost1 to whatever you want