From 63fbf807a9d05670707d672962d71550faac0a11 Mon Sep 17 00:00:00 2001
From: Kishore Nallan <kishorenc@gmail.com>
Date: Wed, 24 Aug 2022 12:45:34 +0530
Subject: [PATCH] Enable num_typos for th locale.

---
 src/index.cpp                   |  2 +-
 test/collection_locale_test.cpp | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/src/index.cpp b/src/index.cpp
index 59ce0078..73b29923 100644
--- a/src/index.cpp
+++ b/src/index.cpp
@@ -2902,7 +2902,7 @@ void Index::fuzzy_search_fields(const std::vector<search_field_t>& the_fields,
                     int64_t field_num_typos = (field_id < num_typos.size()) ? num_typos[the_field.orig_index] : num_typos[0];
 
                     auto& locale = search_schema.at(the_field.name).locale;
-                    if(locale != "" && locale != "en" && !Tokenizer::is_cyrillic(locale)) {
+                    if(locale != "" && locale != "en" && locale != "th" && !Tokenizer::is_cyrillic(locale)) {
                         // disable fuzzy trie traversal for non-english locales
                         field_num_typos = 0;
                     }
diff --git a/test/collection_locale_test.cpp b/test/collection_locale_test.cpp
index 6095a97d..ab40b163 100644
--- a/test/collection_locale_test.cpp
+++ b/test/collection_locale_test.cpp
@@ -278,6 +278,7 @@ TEST_F(CollectionLocaleTest, SearchThaiTextPreSegmentedQuery) {
         {"ความเหลื่อมล้ำ", "Compound Word"},  // ความ, เหลื่อม, ล้ำ
         {"การกระจายรายได้", "Doc A"},
         {"จารีย์", "Doc B"},
+        {"Meiji", "Doc C"},
     };
 
     for(size_t i=0; i<records.size(); i++) {
@@ -299,6 +300,24 @@ TEST_F(CollectionLocaleTest, SearchThaiTextPreSegmentedQuery) {
 
     ASSERT_EQ(1, results["found"].get<size_t>());
     ASSERT_EQ("0", results["hits"][0]["document"]["id"].get<std::string>());
+
+    results = coll1->search("meji",
+                            {"title"}, "", {}, {}, {2}, 10, 1, FREQUENCY, {true},
+                            10, spp::sparse_hash_set<std::string>(),
+                            spp::sparse_hash_set<std::string>(), 10, "", 30, 4, "", 40, {}, {}, {}, 0,
+                            "<mark>", "</mark>", {1}, 1000, true, true).get();
+
+    ASSERT_EQ(1, results["found"].get<size_t>());
+    ASSERT_EQ("3", results["hits"][0]["document"]["id"].get<std::string>());
+
+    results = coll1->search("ควม",
+                            {"title"}, "", {}, {}, {2}, 10, 1, FREQUENCY, {true},
+                            10, spp::sparse_hash_set<std::string>(),
+                            spp::sparse_hash_set<std::string>(), 10, "", 30, 4, "", 40, {}, {}, {}, 0,
+                            "<mark>", "</mark>", {1}, 1000, true, true).get();
+
+    ASSERT_EQ(1, results["found"].get<size_t>());
+    ASSERT_EQ("0", results["hits"][0]["document"]["id"].get<std::string>());
 }
 
 TEST_F(CollectionLocaleTest, SearchAgainstThaiTextExactMatch) {