84 строки
2.3 KiB
SQL
84 строки
2.3 KiB
SQL
CREATE TABLE IF NOT EXISTS Status (
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UserId varchar(26) NOT NULL,
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Status varchar(32) DEFAULT NULL,
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`Manual` tinyint(1) DEFAULT NULL,
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LastActivityAt bigint(20) DEFAULT NULL,
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PRIMARY KEY (UserId)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
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SET @preparedStatement = (SELECT IF(
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(
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
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WHERE table_name = 'Status'
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AND table_schema = DATABASE()
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AND column_name = 'ActiveChannel'
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) > 0,
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'ALTER TABLE Status DROP COLUMN ActiveChannel;',
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'SELECT 1'
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));
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PREPARE alterIfExists FROM @preparedStatement;
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EXECUTE alterIfExists;
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DEALLOCATE PREPARE alterIfExists;
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SET @preparedStatement = (SELECT IF(
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(
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.STATISTICS
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WHERE table_name = 'Status'
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AND table_schema = DATABASE()
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AND index_name = 'idx_status_status'
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) > 0,
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'SELECT 1',
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'CREATE INDEX idx_status_status ON Status(Status);'
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));
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PREPARE createIndexIfNotExists FROM @preparedStatement;
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EXECUTE createIndexIfNotExists;
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DEALLOCATE PREPARE createIndexIfNotExists;
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SET @preparedStatement = (SELECT IF(
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(
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
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WHERE table_name = 'Status'
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AND table_schema = DATABASE()
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AND column_name = 'DNDEndTime'
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) > 0,
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'SELECT 1',
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'ALTER TABLE Status ADD COLUMN DNDEndTime BIGINT;'
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));
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PREPARE alterIfNotExists FROM @preparedStatement;
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EXECUTE alterIfNotExists;
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DEALLOCATE PREPARE alterIfNotExists;
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SET @preparedStatement = (SELECT IF(
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(
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.COLUMNS
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WHERE table_name = 'Status'
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AND table_schema = DATABASE()
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AND column_name = 'PrevStatus'
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) > 0,
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'SELECT 1',
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'ALTER TABLE Status ADD COLUMN PrevStatus VARCHAR(32);'
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));
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PREPARE alterIfNotExists FROM @preparedStatement;
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EXECUTE alterIfNotExists;
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DEALLOCATE PREPARE alterIfNotExists;
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SET @preparedStatement = (SELECT IF(
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(
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SELECT COUNT(*) FROM INFORMATION_SCHEMA.STATISTICS
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WHERE table_name = 'Status'
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AND table_schema = DATABASE()
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AND index_name = 'idx_status_user_id'
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) > 0,
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'DROP INDEX idx_status_user_id ON Status;',
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'SELECT 1'
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));
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PREPARE removeIndexIfExists FROM @preparedStatement;
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EXECUTE removeIndexIfExists;
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DEALLOCATE PREPARE removeIndexIfExists;
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