The idea is to flatten JSON keys and put keys/values in a dynamic map field through a Field Input Transformer.
If you need different analyzers, you can add several dynamic field in the schema.xml.
This is an example of https://docs.datastax.com/en/dse/5.1/dse-dev/datastax_enterprise/search/fieldInputOutputTransformerApi.html
CREATE KEYSPACE fit WITH replication = {'class': 'SimpleStrategy' , 'replication_factor': 1 };
# create table with JSON in complexvalue column
CREATE TABLE fit.jsonlist (
id text PRIMARY KEY,
complexvalue text
);
You need to download and unzip dse and update the path in maven pom.xml of 3 jars.
Then, you will need to change (if you want) the name of the column containing JSON in JsonListFieldInputTransformer.java
mvn clean install
copy target/fit-1.0-SNAPSHOT.jar to install-location/resources/solr/lib
# on my laptop..
cp target/fit-1.0-SNAPSHOT.jar /home/florent/soft/dse-5.1.6/resources/solr/lib/
restart dse node
# create search index
dsetool create_core fit.jsonlist schema=schemaList.xml solrconfig=configList.xml
INSERT INTO fit.jsonlist (id, complexvalue) VALUES ('test2','{"name":"Mortgage","amount":"100000","duration":"60","garantor":{"partyId1":"abc123","partyId2":"def456"}}');
select * from fit.jsonlist where solr_query='map_garantor.partyId1:abc123' ;
id | complexvalue | solr_query
-------+------------------------------------------------------------------------------------------------------------+------------
test2 | {"name":"Mortgage","amount":"100000","duration":"60","garantor":{"partyId1":"abc123","partyId2":"def456"}} | null
INSERT INTO fit.jsonlist (id, complexvalue) VALUES ('test','{"name":"John","age":30,"cars":["Ford","BMW","Fiat Panda"]}');
select * from fit.jsonlist where solr_query='map_cars_:ford' ;
id | complexvalue | solr_query
------+-------------------------------------------------------+------------
test | {"name":"John","age":30,"cars":["Ford","BMW","Fiat Panda"]} | null
select * from fit.jsonlist where solr_query='map_cars_:"ford bmw"' ;
id | complexvalue | solr_query
----+--------------+------------
(0 rows) // as expected
select * from fit.jsonlist where solr_query='map_cars_:"fiat panda"' ;
id | complexvalue | solr_query
------+-------------------------------------------------------------+------------
test | {"name":"John","age":30,"cars":["Ford","BMW","Fiat Panda"]} | null
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