Nick Greenfield

It'd be nice if had better support for various items in Alembic including: * Alter column operations (esp type changes) ([PostgreSQL-Audit does something similar here](https://postgresql-audit.readthedocs.io/en/latest/migrations.html)) * Column renames * Table...

I believe we currently save the entire object for JSONB columns when they change. It might be nice to have an option for saving just the diffs. One could regenerate...

This would need to (robustly) create the parent object, ensure a "restore" history record gets created, and restore it to the last state before a deletion.

Panic when field name includes a `:`

6

When a field name includes a `:`, `vegafusion` cannot handle it and raises a `PanicException`. Here's a minimal example for which the `spec` works fine in the [Vega Editor](https://vega.github.io/editor/#/url/vega-lite/N4IgJAzgxgFgpgWwIYgFwhgF0wBwqgegIDc4BzJAOjIEtMYBXAI0poHsDp5kTykBaADZ04JAKyUAVhDYA7EABoQAEySYUqUMSSCGcCGgDaoABJsAThDg42Adzjn0qAEzOxSgLI1B+gPo4HXwBxHUE5NABGABYlAHlzGlp5dABVAGUAQRAAXwVTCysbe0c0AE53EC8fCH9AkMEw5OcYkHjEmmSQACkkHCR5XPzLazsHJ3LPbz8A82DQ8JdnOISktBB0rMGQM2GisbKAdknq2tn6xsiADmX2zo2cgF1ckExzfogAMwsEI1AoHSgDEEajga1UmAYCEobSShgADA9FCAkAZ0DCOgBJWR0Gg6R5KZDmADWaxsHUwSLgsigbGUHTIaFAAA9GSAPjQ4IJlGsdoVRiUlJgAJ4BNYARwY-UwdDUNFIOSUQtZ7M53PQVWmdXm8kFItB6AlUpl0vlzxpYXMyo5XLW6J1Lz1a1kbAQHTx2Q9QA): ```python3...