---
title: "Discussion on \"Query Execution -  Aggregations\" | Hashnode"
description: "Discussion on \"Query Execution -  Aggregations\". Introduction\nOnce the query planner has determined the optimal plan for executing a query, it's time to implement that plan. But before we can do that, it's important to understand the algorithms used to execute the various operations in the plan.\nIn..."
url: "https://hashnode.com/posts/query-execution-aggregations/63a9f512ba5d373e4dd902c0"
---

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# [Query Execution - Aggregations](https://samuel-sorial.hashnode.dev/query-execution-aggregations?utm_source=hashnode&utm_medium=feed)

Introduction Once the query planner has determined the optimal plan for executing a query, it's time to implement that plan. But before we can do that, it's important to understand the algorithms used to execute the various operations in the plan. In...

Dec 26, 2022 · 6 min read · samuel-sorial.hashnode.dev  
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-   [#query-execution](https://hashnode.com/tag/query-execution)
-   [#disk-oriented-algorithms](https://hashnode.com/tag/disk-oriented-algorithms)
-   [#databases](https://hashnode.com/tag/databases)
-   [#sorting](https://hashnode.com/tag/sorting)
-   [#hashing](https://hashnode.com/tag/hashing)

## Written by

[Samuel Sorial](https://hashnode.com/@samuel-sorial)

@samuel-sorial · Montreal, Canada.

  
[View profile](https://hashnode.com/@samuel-sorial)

Backend Developer @ Cloud Imperium Games

A software engineer who is enthusiast about back-end engineering and system design with a flexible mindset. I love playing with frameworks and moving between the languages just like an artist playing

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