diff --git a/onetl/connection/db_connection/greenplum/connection.py b/onetl/connection/db_connection/greenplum/connection.py
index ff5c5a76..7f7e8961 100644
--- a/onetl/connection/db_connection/greenplum/connection.py
+++ b/onetl/connection/db_connection/greenplum/connection.py
@@ -357,6 +357,7 @@ def get_df_schema(
         columns: list[str] | None = None,
         options: JDBCReadOptions | None = None,
     ) -> StructType:
+        log.info("|%s| Detected dialect: '%s'", self.__class__.__name__, self._get_spark_dialect_name())
         log.info("|%s| Fetching schema of table %r ...", self.__class__.__name__, source)
 
         query = self.dialect.get_sql_query(source, columns=columns, limit=0, compact=True)
diff --git a/onetl/connection/db_connection/jdbc_connection/connection.py b/onetl/connection/db_connection/jdbc_connection/connection.py
index 2752dc25..0ea3078c 100644
--- a/onetl/connection/db_connection/jdbc_connection/connection.py
+++ b/onetl/connection/db_connection/jdbc_connection/connection.py
@@ -159,6 +159,7 @@ def read_source_as_df(
             limit=limit,
         )
 
+        log.info("|%s| Detected dialect: '%s'", self.__class__.__name__, self._get_spark_dialect_name())
         log.info("|%s| Executing SQL query (on executor):", self.__class__.__name__)
         log_lines(log, query)