src/main/java/org/polyjdbc/core/PolyJDBCBuilder.java
public PolyJDBCBuilder withCustomMapping(Class<?> clazz, SqlType sqlType) {
        this.customMappings.put(clazz, sqlType);
        return this;
    }
public PolyJDBCBuilder withCustomMapping(Class<?> clazz, SqlType sqlType) {
        this.customMappings.put(clazz, sqlType);
        return this;
    }
Register custom mapping from clazz to SQL type. SqlType should be one of {@link java.sql.Types}. If you need to
add some transformations, register custom implementation of {@link org.polyjdbc.core.type.TypeWrapper}.

@param clazz class to register
@param sqlType type compatible with {@link java.sql.Types}