issues: 1856075668
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| 1856075668 | I_kwDOCGYnMM5uoXeU | 586 | .transform() fails to drop column if table is part of a view | 9599 | open | 0 | 3 | 2023-08-18T05:25:22Z | 2023-08-18T06:13:47Z | OWNER | I got this error trying to drop a column from a table that was part of a SQL view: > error in view plugins: no such table: main.pypi_releases Upon further investigation I found that this pattern seemed to fix it: ```python def transform_the_table(conn): # Run this in a transaction: with conn: # We have to read all the views first, because we need to drop and recreate them db = sqlite_utils.Database(conn) views = {v.name: v.schema for v in db.views if table.lower() in v.schema.lower()} for view in views.keys(): db[view].drop() db[table].transform( types=types, rename=rename, drop=drop, column_order=[p[0] for p in order_pairs], ) # Now recreate the views for name, schema in views.items(): db.create_view(name, schema) ``` So grab a copy of any view that might reference this table, start a transaction, drop those views, run the transform, recreate the views again. > I wonder if this should become an option in `sqlite-utils`? Maybe a `recreate_views=True` argument for `table.tranform(...)`? Should it be opt-in or opt-out? _Originally posted by @simonw in https://github.com/simonw/datasette-edit-schema/issues/35#issuecomment-1683370548_ | 140912432 | issue | {"url": "https://api.github.com/repos/simonw/sqlite-utils/issues/586/reactions", "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} |