BUG: read_sql_table unable to read views #54185
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| @@ -2411,7 +2413,15 @@ def to_sql( | |||
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| def has_table(self, name: str, schema: str | None = None) -> bool: | |||
| wld = "?" | |||
| query = f"SELECT name FROM sqlite_master WHERE type='table' AND name={wld};" | |||
| query = f""" | |||
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is something like this equivalent here opposed to the sql?
self.meta.reflect(bind=self.con)
return name in metadata.tables.keys()
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Yes, I believe so https://www.sqlite.org/schematab.html
Since this is the sqlite3 backend unfortunately we can't meta.reflect
| @@ -1655,7 +1655,7 @@ def read_table( | |||
| SQLDatabase.read_query | |||
| """ | |||
| self.meta.reflect(bind=self.con, only=[table_name]) | |||
| self.meta.reflect(bind=self.con, only=[table_name], views=True) | |||
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guessing this isnt too expensive performance wise that we will now start reflecting all tables by default (include views/mat views) just thinking if this will impact performance for current users.
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Yeah I'm assuming it's negligible relative to the query or IO, especially since the old implementation was able to access views too
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Hey @mroeschke ! Didn't realise we don't have read_sql_table implemented for sqllite! Looks great to me, some minor thoughts above :) |
doc/source/whatsnew/vX.X.X.rstfile if fixing a bug or adding a new feature.Looks like
read_sql_tableisn't implemented for sqllite, but this PR enableread_sqlto work with views