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DariusIII
18 lines
1.2 KiB
SQL
Executable File
18 lines
1.2 KiB
SQL
Executable File
# Rename pre_id to predb_id in line with lithium conventions.
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ALTER TABLE predb_hashes
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CHANGE COLUMN pre_id predb_id INT(11) UNSIGNED NOT NULL
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COMMENT 'id, of the predb entry, this hash belongs to';
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DROP TRIGGER IF EXISTS insert_hashes;
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DROP TRIGGER IF EXISTS update_hashes;
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DROP TRIGGER IF EXISTS delete_hashes;
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DELIMITER $$
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CREATE TRIGGER insert_hashes AFTER INSERT ON predb FOR EACH ROW BEGIN INSERT INTO predb_hashes (hash, predb_id) VALUES (UNHEX(MD5(NEW.title)), NEW.id), (UNHEX(MD5(MD5(NEW.title))), NEW.id), ( UNHEX(SHA1(NEW.title)), NEW.id);END; $$
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CREATE TRIGGER update_hashes AFTER UPDATE ON predb FOR EACH ROW BEGIN IF NEW.title != OLD.title THEN DELETE FROM predb_hashes WHERE hash IN ( UNHEX(md5(OLD.title)), UNHEX(md5(md5(OLD.title))), UNHEX(sha1(OLD.title)) ) AND predb_id = OLD.id; INSERT INTO predb_hashes (hash, predb_id) VALUES ( UNHEX(MD5(NEW.title)), NEW.id ), ( UNHEX(MD5(MD5(NEW.title))), NEW.id ), ( UNHEX(SHA1(NEW.title)), NEW.id );END IF;END; $$
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CREATE TRIGGER delete_hashes AFTER DELETE ON predb FOR EACH ROW BEGIN DELETE FROM predb_hashes WHERE hash IN ( UNHEX(md5(OLD.title)), UNHEX(md5(md5(OLD.title))), UNHEX(sha1(OLD.title)) ) AND predb_id = OLD.id;END; $$
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DELIMITER ;
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