From ae1a046b998df47003a87a0d4814a294cf75f6ff Mon Sep 17 00:00:00 2001
From: Tom White <tom.e.white@gmail.com>
Date: Mon, 2 Dec 2024 16:44:38 +0000
Subject: [PATCH] Use specified dimension separator for region index

---
 bio2zarr/vcf2zarr/vcz.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/bio2zarr/vcf2zarr/vcz.py b/bio2zarr/vcf2zarr/vcz.py
index 4a502fa8..f17487c0 100644
--- a/bio2zarr/vcf2zarr/vcz.py
+++ b/bio2zarr/vcf2zarr/vcz.py
@@ -950,6 +950,7 @@ def create_index(self):
             shape=index.shape,
             dtype=index.dtype,
             compressor=numcodecs.Blosc("zstd", clevel=9, shuffle=0),
+            dimension_separator=self.metadata.dimension_separator,
         )
         array.attrs["_ARRAY_DIMENSIONS"] = [
             "region_index_values",