added examples

examples/athena_basic_query.py

@@ -0,0 +1,39 @@
+import minerva
+import pprint
+
+pp = pprint.PrettyPrinter(indent=4)
+
+m = minerva.Minerva("hay")
+athena = m.athena("s3://haystac-pmo-athena/")
+
+#query  = athena.query(
+#"""SELECT *
+#FROM trajectories.kitware
+#WHERE ST_Disjoint(
+#  ST_GeometryFromText('POLYGON((103.6 1.2151693, 103.6 1.5151693, 104.14797 1.5151693, 104.14797 1.2151693, 103.6 1.2151693))'),
+#  ST_Point(longitude, latitude)
+#)
+#""")
+
+# Everything *needs* to have a column in order for parquet to work, so scalar
+# values have to be assigned something, so here we use `as count` to create
+# a temporary column called `count`
+#print(athena.query("select count(*) as count from trajectories.kitware").results().head(1))
+
+query  = athena.query(
+    """
+    select round(longitude, 3) as lon, count(*) as count
+    from trajectories.kitware
+    where agent = 4
+    group by round(longitude, 3)
+    order by count(*) desc
+    """
+)
+data   = query.results()
+pp.pprint(data.head(10))
+print(query.runtime)
+
+#import IPython
+#IPython.embed()
+
+