Prefix Query

A query that matches documents that contain a specific prefix in a provided field.

Proto definition:

message PrefixQuery {
    // Document field name.
    string field = 1;
    // Prefix to search for.
    string prefix = 2;
    // Method used to rewrite the query.
    RewriteMethod rewrite = 3;
    // Specifies the size to use for the TOP_TERMS* rewrite methods.
    int32 rewriteTopTermsSize = 4;
}