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29 lines
1.3 KiB
SQL
Executable File
29 lines
1.3 KiB
SQL
Executable File
DROP TABLE IF EXISTS predbhash;
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CREATE TABLE predbhash (
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pre_id INT(11) UNSIGNED NOT NULL DEFAULT 0,
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hashes VARCHAR(512) NOT NULL DEFAULT '',
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PRIMARY KEY (pre_id)
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)
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ENGINE =MYISAM
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ROW_FORMAT = DYNAMIC
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DEFAULT CHARSET =utf8mb4
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COLLATE =utf8mb4_unicode_ci;
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INSERT IGNORE INTO predbhash (pre_id, hashes) (SELECT
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id,
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CONCAT_WS(',', MD5(title), MD5(MD5(title)), SHA1(title))
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FROM prehash);
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CREATE FULLTEXT INDEX ix_predbhash_hashes_ft ON predbhash (hashes);
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ALTER IGNORE TABLE predbhash ADD UNIQUE INDEX ix_predbhash_hashes (hashes(32));
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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 BEGIN INSERT IGNORE INTO predbhash (pre_id, hashes) VALUES (NEW.id, CONCAT_WS(',', MD5(NEW.title), MD5(MD5(NEW.title)), SHA1(NEW.title)));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 BEGIN IF NEW.title != OLD.title THEN UPDATE predbhash SET hashes = CONCAT_WS(',', MD5(NEW.title), MD5(MD5(NEW.title)), SHA1(NEW.title)); END IF;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 BEGIN DELETE FROM predbhash WHERE pre_id = OLD.id;END;
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