added test source

sample_sources/snowflake.yml

@@ -86,6 +86,23 @@ sources:
           - name: name
             description: and this is a name
 
+      - name: parquet_with_inferred_schema_and_mixed_column_case
+        description: "External table using Parquet and inferring the schema with mixed column case"
+        external:
+          location: "@stage"                  # reference an existing external stage
+          file_format: "my_file_format"       # we need a named file format for infer to work
+          infer_schema: true                  # parameter to tell Snowflake we want to infer the table schema
+          ignore_case: true                   # parameter to tell Snowflake we want to ignore column case differences 
+          partitions:
+            - name: section                   # we can define partitions on top of the schema columns
+              data_type: varchar(64)
+              expression: "substr(split_part(metadata$filename, 'section=', 2), 1, 1)"
+        columns:                              # columns can still be listed for documentation/testing purpose
+          - name: id
+            description: this is an id
+          - name: name
+            description: and this is a name
+
       - name: aws_sns_refresh_tbl
         description: "External table using AWS SNS for auto-refresh"
         external: