We're building a database of cars and their properties, supposed to be stored in a DynamoDB.
Creating a cars
table and filling it with objects that has properties like brand
, model
, year
etc is easy.
But we also want a few other features en the admin interface:
Suggestions when typing
When creating a car, it should suggest brand and model from existing cars, when typing in the field.
Should we then maintain a list of brands and models in another table, and make a query to that table, when the user types?
Or is it good enough to query the "rich" table of car definitions, and get all values for brand
, all model
values where brand
has a certain value, etc? My first thought is that it would be a heavy operation and we'd want a separate index of cars and models. But I'm not a NoSQL expert...
Best matches
When enrolling a new car in our system we want to use use an existing defined car as a reference if possible.
So when the user has typed in a brand, model, year etc we want to show a few options of the best matches - we can accept that they year etc. is different, but want the best matches first.
What is the best way to do matches like this on data in a NoSQL database? Any links to tools, concepts etc. will be appreciated :)
Thanks in advance
In dynamodb (all nosql), the less you create tables the best is your architecture (this is one of the main reason we use nosql), so no need of a new table, just add a new attribute and fill it with the searchable data you want, just have in mind that querying by dynamodb is case sensitive and you only can use the begins_with or the contains function to query data
The cons are :
The solution I suggest is using aws cloudsearch, which gives an out of the boxes suggester, you will will have better results and give a better user experience, the indexation in cloudsearch is automatic each time you have a new item, but be aware of the pricing, however they will give you 30 day for free