From 5da5d0d4c16d96f1cae9fb56f85d1e49a104d9d7 Mon Sep 17 00:00:00 2001
From: DL6ER <dl6er@dl6er.de>
Date: Sun, 23 Feb 2025 08:50:08 +0100
Subject: [PATCH] Use temp_store = FILE to avoid memory exhaustion on build the
 tree for very large databases

Signed-off-by: DL6ER <dl6er@dl6er.de>
---
 gravity.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/gravity.sh b/gravity.sh
index 0a34599b..18a5c901 100755
--- a/gravity.sh
+++ b/gravity.sh
@@ -92,7 +92,8 @@ gravity_build_tree() {
   echo -ne "  ${INFO} ${str}..."
 
   # The index is intentionally not UNIQUE as poor quality adlists may contain domains more than once
-  output=$({ pihole-FTL sqlite3 -ni "${gravityTEMPfile}" "CREATE INDEX idx_gravity ON gravity (domain, adlist_id);"; } 2>&1)
+  # We use temp_store = FILE to avoid memory exhaustion on large databases
+  output=$({ pihole-FTL sqlite3 -ni "${gravityTEMPfile}" "PRAGMA temp_store = FILE; CREATE INDEX idx_gravity ON gravity (domain, adlist_id);"; } 2>&1)
   status="$?"
 
   if [[ "${status}" -ne 0 ]]; then