87 строки
2.6 KiB
SQL
87 строки
2.6 KiB
SQL
CREATE TABLE IF NOT EXISTS ChannelMembers (
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ChannelId varchar(26) NOT NULL,
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UserId varchar(26) NOT NULL,
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Roles varchar(64),
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LastViewedAt bigint(20),
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MsgCount bigint(20),
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MentionCount bigint(20),
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NotifyProps text,
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LastUpdateAt bigint(20),
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PRIMARY KEY (ChannelId, 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.STATISTICS
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WHERE table_name = 'ChannelMembers'
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AND table_schema = DATABASE()
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AND index_name = 'idx_channelmembers_user_id'
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) > 0,
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'SELECT 1',
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'CREATE INDEX idx_channelmembers_user_id ON ChannelMembers(UserId);'
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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 = 'ChannelMembers'
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AND table_schema = DATABASE()
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AND column_name = 'SchemeUser'
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) > 0,
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'SELECT 1',
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'ALTER TABLE ChannelMembers ADD COLUMN SchemeUser tinyint(4);' -- this was tinyint(4) on my instance
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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 = 'ChannelMembers'
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AND table_schema = DATABASE()
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AND column_name = 'SchemeAdmin'
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) > 0,
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'SELECT 1',
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'ALTER TABLE ChannelMembers ADD COLUMN SchemeAdmin tinyint(4);' -- this was tinyint(4) on my instance
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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 = 'ChannelMembers'
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AND table_schema = DATABASE()
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AND column_name = 'SchemeGuest'
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) > 0,
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'SELECT 1',
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'ALTER TABLE ChannelMembers ADD COLUMN SchemeGuest tinyint(4);' -- this was tinyint(4) on my instance
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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 = 'ChannelMembers'
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AND table_schema = DATABASE()
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AND index_name = 'idx_channelmembers_channel_id'
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) > 0,
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'DROP INDEX idx_channelmembers_channel_id ON ChannelMembers;',
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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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