improve address ordering with mixes of place and admin areas

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

diff --git a/lib-sql/tokenizer/icu_tokenizer_tables.sql b/lib-sql/tokenizer/icu_tokenizer_tables.sql
index 58965b57fcb25478021cc8a0c27ccb8ddeaa7d85..509f6f65d9d6e5dd659c3d95ad2e3220b4209bb5 100644 (file)
--- a/lib-sql/tokenizer/icu_tokenizer_tables.sql
+++ b/lib-sql/tokenizer/icu_tokenizer_tables.sql
@@ -28,6 +28,10 @@ CREATE INDEX idx_word_postcodes ON word
 CREATE INDEX idx_word_full_word ON word
     USING btree(word) {{db.tablespace.address_index}}
     WHERE type = 'W';
+-- Used when inserting analyzed housenumbers (exclude old-style entries).
+CREATE INDEX idx_word_housenumbers ON word
+    USING btree(word) {{db.tablespace.address_index}}
+    WHERE type = 'H' and word is not null;
 
 GRANT SELECT ON word TO "{{config.DATABASE_WEBUSER}}";