Python: Add up-/downgrade scripts

In the upgrade direction, we simply do nothing.

In the downgrade direction, we remove the two new relations, and
also any `Stmt` nodes corresponding to `TypeAlias` nodes.
This commit is contained in:
Taus
2023-11-03 14:51:58 +00:00
parent 9cd1e0e546
commit 878299823c
7 changed files with 4883 additions and 0 deletions

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description: Add support for type parameters and type alias statements
compatibility: backwards