Support for MySQL backend in indexing

[Hanson-G2G]

Checked

• I searched existing ideas and did not find a similar one
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Feature request

I would like to request support for MySQL as a backend option for indexing in LangChain. This would involve enabling MySQL databases to store and retrieve vectors during indexing processes, similar to other backends currently supported by LangChain such as PostgreSQL or SQLite. Implementing a MySQL backend for this purpose would provide flexibility to developers and organizations already using MySQL as part of their data infrastructure.

Motivation

MySQL is widely used in various applications and environments, especially in legacy systems or large-scale projects. Currently, LangChain does not offer direct support for MySQL in its indexing backend, which forces users to either switch databases or find alternative workarounds to store vectorized data. Adding this feature would allow users who are already using MySQL to integrate their database seamlessly with LangChain’s indexing process, minimizing migration or restructuring efforts.

Proposal (If applicable)

No response