Hristo Stoychev 109927cdb2 Make project compatible with SQLAlchemy 1.3.* (#3862) ...

Related to [this
issue.](https://github.com/hwchase17/langchain/issues/3655#issuecomment-1529415363)

The `Mapped` SQLAlchemy class is introduced in SQLAlchemy 1.4 but the
migration from 1.3 to 1.4 is quite challenging so, IMO, it's better to
keep backwards compatibility and not change the SQLAlchemy requirements
just because of type annotations.

2023-05-01 20:58:22 -07:00

6.2 KiB

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