From f8e329ce7795c47224c2f7dfbf8615e6d1a8fee6 Mon Sep 17 00:00:00 2001
From: Tom Russell <tomalrussell@gmail.com>
Date: Thu, 27 Sep 2018 21:38:37 +0100
Subject: [PATCH] Add index-dropping migrations

---
 migrations/002.index-geometries.down.sql | 10 ++++++++++
 migrations/003.index-buildings.down.sql  |  4 ++++
 2 files changed, 14 insertions(+)
 create mode 100644 migrations/002.index-geometries.down.sql
 create mode 100644 migrations/003.index-buildings.down.sql

diff --git a/migrations/002.index-geometries.down.sql b/migrations/002.index-geometries.down.sql
new file mode 100644
index 00000000..6e5ff132
--- /dev/null
+++ b/migrations/002.index-geometries.down.sql
@@ -0,0 +1,10 @@
+-- Drop geometric indexes
+
+-- Spatial index over geometries
+DROP INDEX IF EXISTS geometries_idx;
+
+-- Source ID index over geometries
+DROP INDEX IF EXISTS geometries_source_idx;
+
+-- Index over building geometry_id (expect to look up building by geometry_id for map tiles)
+DROP INDEX IF EXISTS building_geometry_idx;
diff --git a/migrations/003.index-buildings.down.sql b/migrations/003.index-buildings.down.sql
new file mode 100644
index 00000000..75d0e616
--- /dev/null
+++ b/migrations/003.index-buildings.down.sql
@@ -0,0 +1,4 @@
+-- Drop building indexes
+
+-- UPRN index over buildings
+DROP INDEX IF EXISTS building_uprn_idx;