Add warning for query passthrough

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

@@ -345,6 +345,8 @@ processed by BigQuery. This can be useful for accessing native features which ar
 not available in Trino or for improving query performance in situations where
 running a query natively may be faster.
 
+.. include:: query-passthrough-warning.fragment
+
 .. include:: polymorphic-table-function-ordering.fragment
 
 For example, query the ``example`` catalog and group and concatenate all

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

@@ -134,6 +134,8 @@ processed in Druid. This can be useful for accessing native features which are
 not available in Trino or for improving query performance in situations where
 running a query natively may be faster.
 
+.. include:: query-passthrough-warning.fragment
+
 .. include:: polymorphic-table-function-ordering.fragment
 
 As an example, query the ``example`` catalog and use ``STRING_TO_MV`` and

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

@@ -440,6 +440,8 @@ This can be useful for accessing native features which are not available in
 Trino or for improving query performance in situations where running a query
 natively may be faster.
 
+.. include:: query-passthrough-warning.fragment
+
 .. include:: polymorphic-table-function-ordering.fragment
 
 The ``raw_query`` function requires three parameters:

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

@@ -288,6 +288,8 @@ processed in MariaDB. This can be useful for accessing native features which are
 not available in Trino or for improving query performance in situations where
 running a query natively may be faster.
 
+.. include:: query-passthrough-warning.fragment
+
 .. include:: polymorphic-table-function-ordering.fragment
 
 As an example, query the ``example`` catalog and select the age of employees by

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

@@ -323,6 +323,8 @@ processed in MySQL. This can be useful for accessing native features which are
 not available in Trino or for improving query performance in situations where
 running a query natively may be faster.
 
+.. include:: query-passthrough-warning.fragment
+
 .. include:: polymorphic-table-function-ordering.fragment
 
 For example, query the ``example`` catalog and group and concatenate all

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

@@ -428,6 +428,8 @@ processed in Oracle. This can be useful for accessing native features which are
 not available in Trino or for improving query performance in situations where
 running a query natively may be faster.
 
+.. include:: query-passthrough-warning.fragment
+
 .. include:: polymorphic-table-function-ordering.fragment
 
 As a simple example, query the ``example`` catalog and select an entire table::

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

@@ -344,6 +344,8 @@ processed in PostgreSQL. This can be useful for accessing native features which
 are not available in Trino or for improving query performance in situations
 where running a query natively may be faster.
 
+.. include:: query-passthrough-warning.fragment
+
 .. include:: polymorphic-table-function-ordering.fragment
 
 As a simple example, query the ``example`` catalog and select an entire table::

docs/src/main/sphinx/connector/query-passthrough-warning.fragment

@@ -0,0 +1,4 @@
+The native query passed to the underlying data source is required to return a
+table as a result set. Only the data source performs validation or security
+checks for these queries using its own configuration. Trino does not perform
+these tasks. Only use passthrough queries to read data.

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

@@ -159,6 +159,8 @@ processed in Redshift. This can be useful for accessing native features which
 are not implemented in Trino or for improving query performance in situations
 where running a query natively may be faster.
 
+.. include:: query-passthrough-warning.fragment
+
 .. include:: polymorphic-table-function-ordering.fragment
 
 For example, query the ``example`` catalog and select the top 10 nations by

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

@@ -348,6 +348,8 @@ processed in SQL Server. This can be useful for accessing native features which
 are not implemented in Trino or for improving query performance in situations
 where running a query natively may be faster.
 
+.. include:: query-passthrough-warning.fragment
+
 .. include:: polymorphic-table-function-ordering.fragment
 
 For example, query the ``example`` catalog and select the top 10 percent of