63 lines
2.1 KiB
SQL
63 lines
2.1 KiB
SQL
-- First restore the old columns:
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ALTER TABLE threads ADD COLUMN author_name VARCHAR;
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ALTER TABLE threads ADD COLUMN author_email VARCHAR;
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ALTER TABLE posts ADD COLUMN author_name VARCHAR;
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ALTER TABLE posts ADD COLUMN author_email VARCHAR;
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-- Then select the data back into them:
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UPDATE threads SET author_name = users.name,
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author_email = users.email
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FROM users
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WHERE threads.user_id = users.id;
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UPDATE posts SET author_name = users.name,
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author_email = users.email
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FROM users
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WHERE posts.user_id = users.id;
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-- add the constraints back:
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ALTER TABLE threads ALTER COLUMN author_name SET NOT NULL;
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ALTER TABLE threads ALTER COLUMN author_email SET NOT NULL;
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ALTER TABLE posts ALTER COLUMN author_name SET NOT NULL;
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ALTER TABLE posts ALTER COLUMN author_email SET NOT NULL;
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-- reset the index view:
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CREATE OR REPLACE VIEW thread_index AS
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SELECT t.id AS thread_id,
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t.title AS title,
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t.author_name AS thread_author,
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t.posted AS created,
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t.sticky AS sticky,
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p.id AS post_id,
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p.author_name AS post_author,
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p.posted AS posted
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FROM threads t
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JOIN (SELECT DISTINCT ON (thread_id)
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id, thread_id, author_name, posted
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FROM posts
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ORDER BY thread_id, id DESC) AS p
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ON t.id = p.thread_id
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ORDER BY t.sticky DESC, p.id DESC;
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-- reset the search view:
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DROP MATERIALIZED VIEW search_index;
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CREATE MATERIALIZED VIEW search_index AS
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SELECT p.id AS post_id,
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p.author_name AS author,
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t.id AS thread_id,
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t.title AS title,
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p.body AS body,
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setweight(to_tsvector('english', t.title), 'B') ||
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setweight(to_tsvector('english', p.body), 'A') ||
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setweight(to_tsvector('simple', t.author_name), 'C') ||
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setweight(to_tsvector('simple', p.author_name), 'C') AS document
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FROM posts p
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JOIN threads t
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ON t.id = p.thread_id;
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CREATE INDEX idx_fts_search ON search_index USING gin(document);
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-- and drop the users table and columns:
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ALTER TABLE posts DROP COLUMN user_id;
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ALTER TABLE threads DROP COLUMN user_id;
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DROP TABLE users;
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