Use custom SQL construct for refreshing materialized views #703
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Add a custom SQL construct, `RefreshMaterializedView`, to compile the SQL for `REFRESH MATERIALIZED VIEW ...` command. Use the SQL construct in `refresh_materialized_view` function to execute the SQL. This resolves an issue where `refresh_materialized_view` crashed with `AttributeError: 'NoneType' object has no attribute 'engine'` when using Flask-SQLAlchemy 3.0 where `session.bind` is `None`.
jpvanhal
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Add a custom SQL construct,
RefreshMaterializedView, to compile the SQL forREFRESH MATERIALIZED VIEW ...command. Use the SQL construct inrefresh_materialized_viewfunction to execute the SQL. This resolves an issue whererefresh_materialized_viewcrashed withAttributeError: 'NoneType' object has no attribute 'engine'when using Flask-SQLAlchemy 3.0 wheresession.bindisNone.