From 6b41faa7216f4e6742ea5f7a2b1b2eb1bfe2d1dc Mon Sep 17 00:00:00 2001
From: Brandon Liu <bdon@bdon.org>
Date: Tue, 3 Mar 2026 18:04:43 -0500
Subject: [PATCH] add DuckDB script for downloading monaco or a custom area
 from Overture as Parquet file [#541]

---
 tiles/download-overture.sh | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100755 tiles/download-overture.sh

diff --git a/tiles/download-overture.sh b/tiles/download-overture.sh
new file mode 100755
index 00000000..997fab1a
--- /dev/null
+++ b/tiles/download-overture.sh
@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+REL="${1:-2026-02-18.0}"
+BBOX="${2:-7.408446,43.722901,7.4405,43.752481}"
+OUT="data/sources/${3:-monaco.parquet}"
+
+IFS=',' read -r XMIN YMIN XMAX YMAX <<< "$BBOX"
+
+echo "Downloading release $REL: $BBOX to $OUT"
+
+duckdb -c "
+COPY (
+  SELECT *
+  FROM read_parquet(
+    's3://overturemaps-us-west-2/release/${REL}/**/*.parquet',
+    hive_partitioning=1, filename=1, union_by_name=1
+  )
+  WHERE theme IN ('transportation','places','base','buildings','divisions')
+    AND bbox.xmin <= ${XMAX}
+    AND bbox.xmax >= ${XMIN}
+    AND bbox.ymin <= ${YMAX}
+    AND bbox.ymax >= ${YMIN}
+) TO '${OUT}' (FORMAT PARQUET);"
+
+echo "Wrote ${OUT}"
\ No newline at end of file