From 6fc85354e27852e1791062d2ba5c237aab53d279 Mon Sep 17 00:00:00 2001
From: Peter Johnson <insomnia@rcpt.at>
Date: Tue, 22 Mar 2022 14:41:31 +0100
Subject: [PATCH] feat(SQL): improve quoting of token count query (#223)

---
 lib/Queries.js         | 9 ++-------
 query/count_tokens.sql | 3 +++
 2 files changed, 5 insertions(+), 7 deletions(-)
 create mode 100644 query/count_tokens.sql

diff --git a/lib/Queries.js b/lib/Queries.js
index 73250e3..3e4dc37 100644
--- a/lib/Queries.js
+++ b/lib/Queries.js
@@ -142,15 +142,10 @@ module.exports.matchSubjectObject = function( subject, object, cb ){
 };
 
 module.exports._hasTooManyCombinations = function(subject, object) {
-
   const terms = [ subject, object ];
+  const stmt = this.prepare(query.count_tokens);
 
-  const stmt = this.prepare('SELECT count(*) as cnt from fulltext where fulltext.fulltext = ?');
-
-  const counts = terms.map(function(token) {
-    return stmt.get(token).cnt;
-  });
-
+  const counts = terms.map(token => stmt.get({ token_quoted: `"${token}"` }).cnt);
   const combinations = counts.reduce((a, b) => a * b, 1);
 
   return combinations >= 1e6;
diff --git a/query/count_tokens.sql b/query/count_tokens.sql
new file mode 100644
index 0000000..ee9edb2
--- /dev/null
+++ b/query/count_tokens.sql
@@ -0,0 +1,3 @@
+SELECT COUNT(*) AS cnt
+FROM fulltext AS ft
+WHERE ft.fulltext MATCH $token_quoted