MongoDB Atlas / Atlas Search / Tutorials This tutorial describes how to create an index that uses acustom analyzerand run a diacritic-insensitive query against thesample_mflix.moviescollection. It takes you through the following steps: Set up an Atlas Search index on thetitleandgenresfields in ...
We will use LangChain to create a sample RAG application and the RAGAS framework for evaluation. RAGAS is open-source, has out-of-the-box support for all the above metrics, supports custom evaluation prompts, and has integrations with frameworks such as LangChain, LlamaIndex, and observability...
In this post, I will talk about how to setup a local instance of MongoDB, run it, insert data into it via the Mongo shell, view it using a GUI like MongoDB Compass and connect it to a NodeJS backend. Contents BackgroundWorking with new techSetup MongoDB on a MacbookHow to setup...
Suppose the query may utilize an index, but the predicates do not reach a single continuous range of index keys. The query also has conditions on fields outside the index. In that case, MongoDB must read the documents in addition to utilizing the index to provide the count. ...
Here is the snippet to do so: import json from pymongo import MongoClient # Establish connection to MongoDB client = MongoClient("localhost", 27017) # Create a database named "drones" drones = client["drones"] # Create a collection named "races" races = drones["races"] # Load dataset...
Scan and order– the metric tells the number of operations that couldn’t perform the sort using an index. Locks time and count– metrics dedicated to different lock types showing the time needed to acquire the lock and the number of locks in the given time frame. Operations waiting for a...
An excellent index is one that involves all the fields scanned by a query. This is referred to as a compound index. To create a single index for a fields you can use this code: db.collection.createIndex({“fields”: 1}) For a compound index, to create the indexing: ...
This command instructs Amazon DocumentDB to create an index on thenamefield in ascending order (:1). You have two options for an index’s key pattern:1(ascending) or-1(descending). Direction doesn’t matter for single field indexes, but if you’re doing sorts or range queries on compo...
Afterward, enable MongoDb to startup at boot through the following command: sudo systemctl enable mongod When you’re done, you can configure security, enable remote access, create Users and Databases, assign admin roles to users, etc. You can also tune MongoDB to ensure optimum performance ...
With MongoDB Compass, sometimes shortened toCompass, you can access most of the features the MongoDB database engine offers through an intuitive visual display. You can glance through databases, collections and individual documents, interactively create queries, manipulate existing documents, and design...