[progress Communities] [progress Openedge Abl] Forum Post: Re: Primary Index

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> On Mar 4, 2016, at 4:56 PM, Dmitri Levin wrote: > > The existence of primary index in OE is the result of the absence of cost based optimization. With the utmost respect, I disagree. That is not at all true. For a long time, it has been thought (by database theorists and the like) that a table /must/ have a primary key. We just did what was perceived to be right. But if we were starting over, I would not.

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