Document ClickHouse connector type mapping

docs/src/main/sphinx/connector/clickhouse.rst

@@ -128,6 +128,29 @@ in create table statement. ``ReplicatedMergeTree`` engine is not yet supported.
 Type mapping
 ------------
 
+The data type mappings are as follows:
+
+================= =============== ===================================================================================================
+ClickHouse        Trino           Notes
+================= =============== ===================================================================================================
+``Int8``          ``TINYINT``     ``TINYINT``, ``BOOL``, ``BOOLEAN`` and ``INT1`` are aliases of ``Int8``
+``Int16``         ``SMALLINT``    ``SMALLINT`` and ``INT2`` are aliases of ``Int16``
+``Int32``         ``INTEGER``     ``INT``, ``INT4`` and ``INTEGER`` are aliases of ``Int32``
+``Int64``         ``INTEGER``     ``BIGINT`` is an alias of ``Int64``
+``Float32``       ``REAL``        ``FLOAT`` is an alias of ``Float32``
+``Float64``       ``DOUBLE``      ``DOUBLE`` is an alias of ``Float64``
+``Decimal``       ``DECIMAL``
+``FixedString``   ``VARBINARY``   Enabling ``clickhouse.map-string-as-varchar`` config property changes the mapping to ``VARCHAR``
+``String``        ``VARBINARY``   Enabling ``clickhouse.map-string-as-varchar`` config property changes the mapping to ``VARCHAR``
+``Date``          ``DATE``
+``DateTime``      ``TIMESTAMP``
+``IPv4``          ``VARCHAR``
+``IPv6``          ``VARCHAR``
+``Enum8``         ``VARCHAR``
+``Enum16``        ``VARCHAR``
+``UUID``           ``UUID``
+================= =============== ===================================================================================================
+
 .. include:: jdbc-type-mapping.fragment
 
 .. _clickhouse-pushdown: