feat: add example of reading parquet from s3

examples/sql-parquet-s3.py

@@ -0,0 +1,22 @@
+import os
+import datafusion
+from datafusion.object_store import AmazonS3
+
+region = "us-east-1"
+bucket_name = "yellow-trips"
+
+s3 = AmazonS3(
+    bucket_name=bucket_name,
+    region=region,
+    access_key_id=os.getenv("AWS_ACCESS_KEY_ID"),
+    secret_access_key=os.getenv("AWS_SECRET_ACCESS_KEY"),
+)
+
+ctx = datafusion.SessionContext()
+path = f"s3://{bucket_name}/"
+ctx.register_object_store(path, s3)
+
+ctx.register_parquet("trips", path)
+
+df = ctx.sql("select count(passenger_count) from trips")
+df.show()