PostgreSQL Query Rewriting Techniques The previous articles in this series covered performance problems you fix by adding indexes, restructuring joins, or tuning memory. This one is about the queries where the plan is "fine" — every node is doing something reasonable — but the query itself is asking the wrong question, producing unnecessarily large intermediate results or forcing the planner dow
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An opinionated list of Python frameworks, libraries, tools, and resources
MongoDB is a document database that stores data as flexible JSON-like documents instead of fixed rows and columns. It is commonly used for web applications, REST APIs, content management systems, and real-time analytics where the data model changes frequently. This tutorial walks through installing MongoDB Community Edition on Ubuntu 24.04, enabling authentication, creating an admin user, creating
SQL is widely known for data querying and manipulation but systems do grow; data becomes larger; processes become repetitive and operations become sensitive. SQL has some features which enables it to be considered a fully fledged programming language. Some of the features which I discuss in this article are procedures, functions and transactions. Each of these concepts serve distinct purposes. Sto
Hi 👋, In this post we shall explore Bedrock's structured KB with this architecture: Upload CSVs to S3 > SNS Queue > Crawl data with Glue > Query with Redshift > Bedrock KB > Query with LLM. Let's do some of this with code. Let's get started. Clone the repo and switch to the project directory. git clone [email protected]:networkandcode/networkandcode.github.io.git cd structured-kb-demo/ Do a uv sync
In this guide, we will walk through the step-by-step process of installing Terraform and preparing your local environment for infrastructure automation. Install Terraform on Linux Install AWS CLI Configure AWS credentials Verify your setup Set up VS Code for Terraform development # Update package list sudo apt-get update # Install required packages sudo apt-get install -y gnupg software-propertie
Subqueries vs. CTEs in SQL: A Practical Guide to Writing Cleaner, Smarter Queries Whether you're just getting comfortable with SQL or leveling up your data skills, two tools will come up again and again when working with complex queries: subqueries and Common Table Expressions (CTEs). They solve similar problems — breaking a complex query into manageable pieces — but they do it in different ways