: Subject: When does Solr actually convert textual representation into non-text : formats (e.g. Date)
The short answer is: any place you want. At the lowest level, FieldType's are required to support converting (legal) "String" values into whatever native java object best represents their type -- but they are also allowed/encouraged to accept objects of that native type directly and use them as is. In some cases, like with the "XmlUpdateRequestHandler" code , the raw sting input is left sa is and passed down to the FieldType, because the RequestHandler's parsing code shouldn't make assumptions about the field types -- in other cases, like the "JavaBinUpdateRequestHandler" the type info comes along with the data, so it can easily pass the Integer/Date/Whatever on to the FieldType. In between, things like UpdateRequetProcessor's can convert from String to Date or vice versa as they see fit. As for DIH: i'm not entirely sure all of the places where a String might be converted to a Date ... i think there are special transformers for that, but when dealing with things like jdbc datasources you frequently get a true Date object back from the jdbc connection and i *think* DIH uses those Date objects as is. : 4) copyField copy field is not something i've ever considered in this context ... i genuinely don't know what would happen if you copyField'd from a TrieDateField to TextField and your indexing code was providing a true "Date" object ... i suspect you'd get a simple date.toString() in the text field. -Hoss
