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---
id: dialects
title: Supported Dialects
---
## MySQL
MySQL supports all the features that are mentioned in the [Migration](migrate.md) section,
and it's being tested constantly on the following 3 versions: `5.6.35`, `5.7.26` and `8`.
## PostgreSQL
PostgreSQL supports all the features that are mentioned in the [Migration](migrate.md) section,
and it's being tested constantly on the following 3 versions: `10`, `11` and `12`.
## SQLite
SQLite supports all _"append-only"_ features mentioned in the [Migration](migrate.md) section.
However, dropping or modifying resources, like [drop-index](migrate.md#drop-resources) are not
supported by default by SQLite, and will be added in the future using a [temporary table](https://www.sqlite.org/lang_altertable.html#otheralter).
## Gremlin
Gremlin does not support migration nor indexes, and **<ins>it's considered experimental</ins>**.
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