## Problem
We now export components under a subpath in ui-patterns to avoid barrel
files as they slow down every tools (from IDE to linters, etc.) and may
also affect bundles our users have to download.
## Solution
- Remove the UI patterns index file
- Fix invalid impors
There is an edge case interaction between the Postgres query parser and
MSSQL foreign tables, where the query parser may drop sort clauses that
are redundant with applied filters. This leads to invalid MSSQL syntax,
because the resulting query has a `limit` but no `sort`, and the user
sees a confusing error message.
This PR detects this edge case on MSSQL foreign tables. There are three
cases:
1. The user filters by a column, but there are still other columns
available for sorting. The default search for a sorting column will
leave out the filtered column.
2. The user filters by a column/several columns, and there are no more
columns that can be used for sorting. We stop the query and show an
admonition.
3. The user filters by a column, then tries to sort by the same column.
We stop the query and show an admonition.
Gildas Garcia