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Document predicate pushdown support for string-type columns in SQL Se… #16366

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Apr 3, 2023
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Document predicate pushdown support for string-type columns in SQL Se… #16366

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17 changes: 16 additions & 1 deletion docs/src/main/sphinx/connector/sqlserver.rst
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Expand Up @@ -436,7 +436,22 @@ The connector supports pushdown for a number of operations:

.. include:: join-pushdown-enabled-true.fragment

.. include:: no-pushdown-text-type.fragment
Predicate pushdown support
""""""""""""""""""""""""""

The connector supports pushdown of predicates on ``VARCHAR`` and ``NVARCHAR``
columns if the underlying columns in SQL Server use a case-sensitive `collation
<https://learn.microsoft.com/en-us/sql/relational-databases/collations/collation-and-unicode-support?view=sql-server-ver16>`_.

The following operators are pushed down:

- ``=``
- ``<>``
- ``IN``
- ``NOT IN``

To ensure correct results, operators are not pushed down for columns using a
case-insensitive collation.

.. _sqlserver-bulk-insert:

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