initial commit

config.yaml

@@ -0,0 +1,28 @@
+connection_string: postgresql://postgres:mysecretpassword@localhost:5433/postgres
+
+# The query to execute. This MUST be a COPY...TO STDOUT (FORMAT binary) command.
+# We cast all columns to match the binary types our parser expects.
+query: "COPY (SELECT id::BIGINT, uuid::TEXT, username::TEXT, score::REAL, is_active::BOOLEAN, last_login::TIMESTAMP, notes::TEXT, course_id::INT, start_date::DATE, rating::FLOAT8 FROM benchmark_table) TO STDOUT (FORMAT binary)"
+
+# 'schema' is the ordered list of columns *exactly* as they appear in the query's SELECT statement.
+schema:
+  - column_name: id
+    arrow_type: Int64
+  - column_name: uuid
+    arrow_type: Utf8
+  - column_name: username
+    arrow_type: Utf8
+  - column_name: score
+    arrow_type: Float32
+  - column_name: is_active
+    arrow_type: Boolean
+  - column_name: last_login
+    arrow_type: Timestamp(Nanosecond, None)
+  - column_name: notes
+    arrow_type: Utf8
+  - column_name: course_id
+    arrow_type: Int32
+  - column_name: start_date
+    arrow_type: Date32
+  - column_name: rating
+    arrow_type: Float64