1. Add a new table to store providers from official packages:

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CREATE TABLE OfficialProviders (
	ID INTEGER UNSIGNED NOT NULL AUTO_INCREMENT,
	Name VARCHAR(64) NOT NULL,
	Provides VARCHAR(64) NOT NULL,
	PRIMARY KEY (ID)
) ENGINE = InnoDB;
CREATE UNIQUE INDEX ProviderNameProvides ON OfficialProviders (Name, Provides);
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2. Resize the email address field:

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ALTER TABLE Users MODIFY Email VARCHAR(256) NOT NULL;
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