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recreate word table when refreshing counts

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The counting touches a large part of the word table, leaving
bloated tables and indexes. Thus recreate the table instead and
swap it in.
This commit is contained in:
Sarah Hoffmann
2024-02-04 16:43:33 +01:00
parent 33c0f249b1
commit 81eed0680c
10 changed files with 130 additions and 82 deletions
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40
lib-sql/tokenizer/icu_tokenizer_tables.sql
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@@ -1,40 +0,0 @@
-- 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,
word_token text NOT NULL,
type text NOT NULL,
word text,
info jsonb
) {{db.tablespace.search_data}};
CREATE INDEX idx_word_word_token ON word
USING BTREE (word_token) {{db.tablespace.search_index}};
-- Used when updating country names from the boundary relation.
CREATE INDEX idx_word_country_names ON word
USING btree(word) {{db.tablespace.address_index}}
WHERE type = 'C';
-- Used when inserting new postcodes on updates.
CREATE INDEX idx_word_postcodes ON word
USING btree(word) {{db.tablespace.address_index}}
WHERE type = 'P';
-- Used when inserting full words.
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}}";
DROP SEQUENCE IF EXISTS seq_word;
CREATE SEQUENCE seq_word start 1;
GRANT SELECT ON seq_word to "{{config.DATABASE_WEBUSER}}";