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29 lines
1.2 KiB
SQL
Executable File
29 lines
1.2 KiB
SQL
Executable File
-- This should be a quick patch.
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-- You can verify them by running this command in MySQL: SHOW TRIGGERS LIKE 'prehash' \g
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DELIMITER $$
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DROP TRIGGER IF EXISTS insert_hashes $$
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CREATE TRIGGER insert_hashes AFTER INSERT ON prehash FOR EACH ROW
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BEGIN
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INSERT IGNORE INTO predbhash (hash, pre_id) VALUES (UNHEX(MD5(NEW.title)), NEW.id), (UNHEX(MD5(MD5(NEW.title))), NEW.id), ( UNHEX(SHA1(NEW.title)), NEW.id);
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END; $$
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DROP TRIGGER IF EXISTS update_hashes $$
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CREATE TRIGGER update_hashes AFTER UPDATE ON prehash FOR EACH ROW
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BEGIN
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IF NEW.title != OLD.title
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THEN
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DELETE FROM predbhash WHERE hash IN ( UNHEX(md5(OLD.title)), UNHEX(md5(md5(OLD.title))), UNHEX(sha1(OLD.title)) ) AND pre_id = OLD.id;
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INSERT IGNORE INTO predbhash (hash, pre_id) VALUES ( UNHEX(MD5(NEW.title)), NEW.id ), ( UNHEX(MD5(MD5(NEW.title))), NEW.id ), ( UNHEX(SHA1(NEW.title)), NEW.id );
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END IF;
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END; $$
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DROP TRIGGER IF EXISTS delete_hashes $$
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CREATE TRIGGER delete_hashes AFTER DELETE ON prehash FOR EACH ROW
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BEGIN
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DELETE FROM predbhash WHERE hash IN ( UNHEX(md5(OLD.title)), UNHEX(md5(md5(OLD.title))), UNHEX(sha1(OLD.title)) ) AND pre_id = OLD.id;
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END; $$
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DELIMITER ;
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