---
title: "Discussion on \"The Real Cost of a Single Insert in Postgres\" | Hashnode"
description: "Discussion on \"The Real Cost of a Single Insert in Postgres\". PostgreSQL write amplification explained: why indexes multiply WAL volume, how to measure it on your tables, and four ways to reduce it without schema changes."
url: "https://hashnode.com/posts/real-cost-of-single-insert-in-postgres/6ad62769c9420164e56a91d8"
---

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# [The Real Cost of a Single Insert in Postgres](https://tigerdata.hashnode.dev/real-cost-of-single-insert-in-postgres?utm_source=hashnode&utm_medium=feed)

PostgreSQL write amplification explained: why indexes multiply WAL volume, how to measure it on your tables, and four ways to reduce it without schema changes.

Oct 19 · 9 min read · tigerdata.hashnode.dev  
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## Written by

[Tiger Data](https://hashnode.com/@tigerdata)

@tigerdata · New York, USA

  
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Tiger Data, the creators of TimescaleDB, develops the open-source time-series database built on PostgreSQL and operates Tiger Cloud.

Tiger Data, the creators of TimescaleDB, develops the open-source time-series database built on PostgreSQL.

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