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Cover Image for postgresql COUNT(DISTINCT ...) very slow

postgresql COUNT(DISTINCT ...) very slow

updated a few hours ago
countperformance

# Understanding the issue: PostgreSQL COUNT(DISTINCT ...) very slow So you're facing a problem with the performance of your PostgreSQL query that uses the `COUNT(DISTINCT ...)` function. The query takes significantly more time compared to a simple `COUNT(

Matheus Mello
Matheus Mello
Cover Image for Group query results by month and year in postgresql

Group query results by month and year in postgresql

updated a few hours ago

# How to Group Query Results by Month and Year in PostgreSQL If you're working with a PostgreSQL database and need to group query results by month and year, you've come to the right place! In this guide, we'll walk you through the process step-by-step and

Matheus Mello
Matheus Mello
Cover Image for Are PostgreSQL column names case-sensitive?

Are PostgreSQL column names case-sensitive?

updated a few hours ago
identifier

# Are PostgreSQL column names case-sensitive? šŸ—‚ļøšŸ”Ž When working with PostgreSQL, you may encounter a question: Are column names case-sensitive? The short answer is - yes, they are! šŸ¤” **Why does this matter?** Well, it can often lead to confusion and fr

Matheus Mello
Matheus Mello
Cover Image for How to thoroughly purge and reinstall postgresql on ubuntu?

How to thoroughly purge and reinstall postgresql on ubuntu?

updated a few hours ago

## How to Thoroughly Purge and Reinstall PostgreSQL on Ubuntu šŸ’„šŸ”§šŸ’» So, you've managed to bugger up your PostgreSQL installation on Ubuntu Karmic. We've all been there! But fear not, because I'm here to guide you through the process of thoroughly purging

Matheus Mello
Matheus Mello
Cover Image for How do I query using fields inside the new PostgreSQL JSON datatype?

How do I query using fields inside the new PostgreSQL JSON datatype?

updated a few hours ago
json

# How to Query Using Fields Inside the New PostgreSQL JSON Datatype šŸ•µļøā€ā™‚ļø Are you curious about the new JSON functions in PostgreSQL 9.2? šŸ¤” Look no further! In this guide, we will explore how to query records using fields inside the new PostgreSQL JSON

Matheus Mello
Matheus Mello
Cover Image for How to see the CREATE VIEW code for a view in PostgreSQL?

How to see the CREATE VIEW code for a view in PostgreSQL?

updated a few hours ago

# How to Unveil the CREATE VIEW Code in PostgreSQL? So, you want to unravel the CREATE VIEW code for a view in PostgreSQL. šŸ¤” No worries, mate! We got you covered. šŸ’Ŗ ### The Problem: You've probably been trying to find an easy way to see the code used

Matheus Mello
Matheus Mello
Cover Image for Using current time in UTC as default value in PostgreSQL

Using current time in UTC as default value in PostgreSQL

updated a few hours ago
timestamptimezone

# Using current time in UTC as default value in PostgreSQL Hey there! šŸ‘‹ Are you trying to set the default value of a `TIMESTAMP WITHOUT TIME ZONE` column to the current time in UTC using PostgreSQL? šŸ¤” Well, you've come to the right place! In this blog p

Matheus Mello
Matheus Mello
Cover Image for How to alter a column"s data type in a PostgreSQL table?

How to alter a column"s data type in a PostgreSQL table?

updated a few hours ago

# How to Alter a Column's Data Type in a PostgreSQL Table? Have you ever tried altering the data type of a column in a PostgreSQL table, only to encounter an error? You're not alone! Many developers struggle with this issue, but fear not - we're here to h

Matheus Mello
Matheus Mello
Cover Image for Grouped LIMIT in PostgreSQL: show the first N rows for each group?

Grouped LIMIT in PostgreSQL: show the first N rows for each group?

updated a few hours ago

šŸ“ GROUPED LIMIT IN POSTGRESQL: SHOW THE FIRST N ROWS FOR EACH GROUP? šŸ˜ Are you struggling with fetching the first N rows for each group in PostgreSQL? šŸ˜£ Don't worry, we've got you covered! In this blog post, we'll explore common issues and provide easy

Matheus Mello
Matheus Mello
Cover Image for Why do we need message brokers like RabbitMQ over a database like PostgreSQL?

Why do we need message brokers like RabbitMQ over a database like PostgreSQL?

updated a few hours ago
redis

# Why Do We Need Message Brokers like RabbitMQ Over a Database like PostgreSQL? šŸ°šŸ“¦šŸ˜ So, you're new to the world of message brokers and you're wondering why we need them, especially when we already have a reliable database like PostgreSQL. šŸ¤” Let's div

Matheus Mello
Matheus Mello