0760956561
* Changes varchar(36) columns to UUID type in MSSQL - this will be much more efficient * ===As always, please, please backup your database before applying this patch=== * Thanks Ruud Lathrop (for the patch) and StrawberryFride (for the review)
30 lines
994 B
SQL
30 lines
994 B
SQL
BEGIN TRANSACTION
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CREATE TABLE dbo.Tmp_userfriends
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(
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ownerID uniqueidentifier NOT NULL,
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friendID uniqueidentifier NOT NULL,
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friendPerms int NOT NULL,
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datetimestamp int NOT NULL
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) ON [PRIMARY]
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IF EXISTS(SELECT * FROM dbo.userfriends)
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EXEC('INSERT INTO dbo.Tmp_userfriends (ownerID, friendID, friendPerms, datetimestamp)
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SELECT CONVERT(uniqueidentifier, ownerID), CONVERT(uniqueidentifier, friendID), friendPerms, datetimestamp FROM dbo.userfriends WITH (HOLDLOCK TABLOCKX)')
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DROP TABLE dbo.userfriends
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EXECUTE sp_rename N'dbo.Tmp_userfriends', N'userfriends', 'OBJECT'
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CREATE NONCLUSTERED INDEX IX_userfriends_ownerID ON dbo.userfriends
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(
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ownerID
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) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
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CREATE NONCLUSTERED INDEX IX_userfriends_friendID ON dbo.userfriends
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(
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friendID
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) WITH( STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
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COMMIT
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