postcodes: strip leading country codes

[nominatim.git] / lib-sql / tokenizer / legacy_tokenizer_tables.sql

diff --git a/lib-sql/tokenizer/legacy_tokenizer_tables.sql b/lib-sql/tokenizer/legacy_tokenizer_tables.sql
index 3410b763a11b738132ffd307ee9e1e70ee6aeef9..7969f1ca549290eb3289cb797e0492949d0b5120 100644 (file)
--- a/lib-sql/tokenizer/legacy_tokenizer_tables.sql
+++ b/lib-sql/tokenizer/legacy_tokenizer_tables.sql
@@ -1,3 +1,10 @@
+-- SPDX-License-Identifier: GPL-2.0-only
+--
+-- This file is part of Nominatim. (https://nominatim.org)
+--
+-- Copyright (C) 2022 by the Nominatim developer community.
+-- For a full list of authors see the git log.
+
 DROP TABLE IF EXISTS word;
 CREATE TABLE word (
   word_id INTEGER,
@@ -12,6 +19,8 @@ CREATE TABLE word (
 
 CREATE INDEX idx_word_word_token ON word
     USING BTREE (word_token) {{db.tablespace.search_index}};
+CREATE INDEX idx_word_word ON word
+    USING BTREE (word) {{db.tablespace.search_index}} WHERE word is not null;
 GRANT SELECT ON word TO "{{config.DATABASE_WEBUSER}}";
 
 DROP SEQUENCE IF EXISTS seq_word;