From ff01144e871b7eaa3b91a3054fa57c3dbbb19702 Mon Sep 17 00:00:00 2001
From: Christopher Baines <mail@cbaines.net>
Date: Thu, 26 Dec 2019 09:28:20 +0000
Subject: Create an index for the hash component of derivation filenames

This is to aid rendering of narinfo files. They're requested with the path
/HASH.narinfo, so to quickly find the relevant derivation, this index can be
used.
---
 sqitch/deploy/derivations_hash_index.sql | 7 +++++++
 1 file changed, 7 insertions(+)
 create mode 100644 sqitch/deploy/derivations_hash_index.sql

(limited to 'sqitch/deploy')

diff --git a/sqitch/deploy/derivations_hash_index.sql b/sqitch/deploy/derivations_hash_index.sql
new file mode 100644
index 0000000..869ff0a
--- /dev/null
+++ b/sqitch/deploy/derivations_hash_index.sql
@@ -0,0 +1,7 @@
+-- Deploy guix-data-service:derivations_hash_index to pg
+
+BEGIN;
+
+CREATE INDEX derivations_hash ON derivations (substring(file_name from 12 for 32));
+
+COMMIT;
-- 
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