From 209b76b7143ad45b7da17c884e6b5654eda7b1bb Mon Sep 17 00:00:00 2001
From: mokurin000 <1348292515a@gmail.com>
Date: Fri, 19 Sep 2025 22:00:08 +0800
Subject: [PATCH] feat: export music db in flatten format

---
 .gitignore                   | 1 +
 utils/export_musicdb_flat.py | 5 +++++
 2 files changed, 6 insertions(+)
 create mode 100644 utils/export_musicdb_flat.py

diff --git a/.gitignore b/.gitignore
index 276b2af..8ba3494 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,7 @@
 /players*.parquet
 /region*.parquet
 /records*.parquet
+/musics.parquet
 
 /.python-version
 /uv.lock
diff --git a/utils/export_musicdb_flat.py b/utils/export_musicdb_flat.py
new file mode 100644
index 0000000..7ed9c3f
--- /dev/null
+++ b/utils/export_musicdb_flat.py
@@ -0,0 +1,5 @@
+import polars as pl
+
+pl.read_json("music_db/src/musicDB.json").explode(pl.col("levels")).unnest(
+    pl.col("levels")
+).write_parquet("musics.parquet")