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Remove primary key ContributorId
`Ebook` to `Contributor` is one to many, and we don't query by ContributorId. The table already has a SortOrder column, and we use that to order the queries.
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3 changed files with 4 additions and 9 deletions
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@ -1,5 +1,4 @@
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CREATE TABLE `Contributors` (
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`ContributorId` int(10) unsigned NOT NULL AUTO_INCREMENT,
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`EbookId` int(10) unsigned NOT NULL,
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`Name` varchar(255) NOT NULL,
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`UrlName` varchar(255) NOT NULL,
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@ -9,7 +8,6 @@ CREATE TABLE `Contributors` (
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`FullName` varchar(255) NULL,
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`NacoafUrl` varchar(255) NULL,
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`SortOrder` tinyint(3) unsigned NOT NULL,
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PRIMARY KEY (`ContributorId`),
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KEY `index1` (`EbookId`),
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KEY `index2` (`UrlName`)
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) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4;
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