IF NOT EXISTS (SELECT 1 FROM syscolumns WHERE id = OBJECT_ID('MARKET_ITEMS') AND name = 'listing_description')
	ALTER TABLE [dbo].[MARKET_ITEMS] ADD [listing_description] [varchar](500) NULL
IF NOT EXISTS (SELECT 1 FROM syscolumns WHERE id = OBJECT_ID('MARKET_ITEMS') AND name = 'listing_image')
	ALTER TABLE [dbo].[MARKET_ITEMS] ADD [listing_image] [varchar](255) NULL
