# The doc\_categories\_indexes table is gone
**URL:** https://meta.discourse.org/t/doc-categories-indexes/409510
**Category:** Support
**Created:** [August 7, 2026, 9:28am UTC](https://meta.discourse.org/t/doc-categories-indexes/409510 "2026-08-07T09:28:50Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@singi2016cn](https://meta.discourse.org/u/singi2016cn)
#### Post date: [August 7, 2026, 9:28am UTC](https://meta.discourse.org/t/doc-categories-indexes/409510/1 "2026-08-07T09:28:50Z")
Discourse v2026.7.1 — [Commits · discourse/discourse · GitHub](https://github.com/discourse/discourse/commits/ed98909721) — Ember v6.10.1
After a successful upgrade, I noticed that the `doc_categories_indexes` table was missing, and then I encountered an error when running migrations locally.
```plaintext
Caused by:
PG::UndefinedTable: ERROR: relation "doc_categories_indexes" does not exist (PG::UndefinedTable)
LINE 10: WHERE a.attrelid = '"doc_categories_indexes"'::regclass
```
The `doc_categories_indexes` table appears to belong to the [Discourse Doc Categories - Customization / Plugins - Discourse Meta](https://meta.discourse.org/t/discourse-doc-categories/322376) plugin. Does anyone know what happened?
---
### Author:  [@Lilly](https://meta.discourse.org/u/Lilly)
#### Post date: [August 7, 2026, 2:50pm UTC](https://meta.discourse.org/t/doc-categories-indexes/409510/2 "2026-08-07T14:50:19Z")
did you do the PG18 upgrade? [PostgreSQL 18 update for self-hosters](https://meta.discourse.org/t/postgresql-18-update-for-self-hosters/406194)
---
### Author:  [@singi2016cn](https://meta.discourse.org/u/singi2016cn)
#### Post date: [August 10, 2026, 1:32am UTC](https://meta.discourse.org/t/doc-categories-indexes/409510/3 "2026-08-10T01:32:13Z")
Upgraded; the `SELECT version()` command shows the following:
```plaintext
PostgreSQL 18.4 (Debian 18.4-1.pgdg12+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 12.2.0-14+deb12u1) 12.2.0, 64-bit
```