---
id: feature/573332
type: feature
title: Faster data loading with improved data model for table extensions
summary: "Service and platform: Faster data loading with improved data model for table extensions. Generally available, GA 2026-10 (Microsoft 365 roadmap). With the new data model for table extensions, all fields on an AL table are stored in the same table in the database. This gives faster performance on all database operations that involve table extensions."
tier: official
language: en
system: platform
tags:
  - service and platform
review:
  state: derived
  by: null
  at: null
  flags: []
generated:
  at: "2026-10-07T23:41:05.192Z"
  pipeline: 0.2.0
  prompts: {}
  input_hash: 282399bbc0cd600757fd9ea6b5d9fa3d93cf830f2aa772ddf184fb05458a0e10
evidence:
  - kind: roadmap
    url: https://www.microsoft.com/microsoft-365/roadmap?id=573332
    title: Microsoft 365 roadmap 573332
    date: "2026-09-30"
    commit: null
    t: null
    quote: null
  - kind: video
    url: https://www.youtube.com/watch?v=PZVTTem-nZw&t=288s
    title: "Creating TableExtensions in BC29 like we're back in NAV (But Business Central): Table extensions stored in single SQL table"
    date: null
    commit: null
    t: 288
    quote: null
  - kind: video
    url: https://www.youtube.com/watch?v=qABlX4AL3GM&t=103s
    title: "Business Central 29.0: Major Change to Table Extensions & SQL.: Unified table storage for extensions"
    date: null
    commit: null
    t: 103
    quote: null
  - kind: video
    url: https://www.youtube.com/watch?v=qABlX4AL3GM&t=751s
    title: "Business Central 29.0: Major Change to Table Extensions & SQL.: Improved database operation performance for extensions"
    date: null
    commit: null
    t: 751
    quote: null
  - kind: video
    url: https://www.youtube.com/watch?v=Sh3ySQSTw-o&t=117s
    title: "What's new: Server and Database (2026 release wave 2): Optimized table extensions data model - zero-join"
    date: null
    commit: null
    t: 117
    quote: null
  - kind: video
    url: https://www.youtube.com/watch?v=Sh3ySQSTw-o&t=172s
    title: "What's new: Server and Database (2026 release wave 2): Table extension performance gains"
    date: null
    commit: null
    t: 172
    quote: null
links:
  learn: []
  objects: []
  features: []
  topics: []
  localizations: []
  videos:
    - video/PZVTTem-nZw
    - video/qABlX4AL3GM
    - video/Sh3ySQSTw-o
  posts: []
  guidelines: []
roadmap_id: "573332"
wave: 2026 release wave 2
status: ga
roadmap_status: Launched
release_phase: General Availability
ga_date: 2026-10
preview_date: null
area: Service and platform
whatsnew_url: null
localizations: []
objects_touched: []
---

# Faster data loading with improved data model for table extensions

> Service and platform: Faster data loading with improved data model for table extensions. Generally available, GA 2026-10 (Microsoft 365 roadmap). With the new data model for table extensions, all fields on an AL table are stored in the same table in the database. This gives faster performance on all database operations that involve table extensions.

[Microsoft 365 roadmap 573332](https://www.microsoft.com/microsoft-365/roadmap?id=573332) · Service and platform · generally available · roadmap status "Launched", phase General Availability

## What Microsoft says

With the new data model for table extensions, all fields on an AL table are stored in the same table in the database. This gives faster performance on all database operations that involve table extensions.

## Dates

- General availability: October CY2026 (2026 release wave 2)
- Public preview: not given
- On the roadmap since 2026-09-30, last changed 2026-09-30

## Covered by

Matched by Haiku among videos and Learn pages in the same galaxy system, checked against the roadmap ids and the evidence text. Every link below was reviewed by Opus.

### Videos

- [Creating TableExtensions in BC29 like we're back in NAV (But Business Central)](../videos/PZVTTem-nZw.md): Table extensions stored in single SQL table at [4:48](https://www.youtube.com/watch?v=PZVTTem-nZw&t=288s)
- [Business Central 29.0: Major Change to Table Extensions & SQL.](../videos/qABlX4AL3GM.md): Unified table storage for extensions at [1:43](https://www.youtube.com/watch?v=qABlX4AL3GM&t=103s); Improved database operation performance for extensions at [12:31](https://www.youtube.com/watch?v=qABlX4AL3GM&t=751s)
- [What's new: Server and Database (2026 release wave 2)](../videos/Sh3ySQSTw-o.md): Optimized table extensions data model - zero-join at [1:57](https://www.youtube.com/watch?v=Sh3ySQSTw-o&t=117s); Table extension performance gains at [2:52](https://www.youtube.com/watch?v=Sh3ySQSTw-o&t=172s)

Source: Microsoft 365 roadmap. Status words follow the roadmap.