On 10/02/2020 16:23, Ying Zhang wrote:
Hai Simon,
What kinds of constraints do you have in mind? Just some quick thoughts: primary key, foreign key and unique constraints often affect MonetDB’s choice for query exec. plans. But, otherwise, it’s a very long story. Coincidently, I was just thinking about writing an article about how query plan generation and optimisation works in MonetDB, but that’ll take some time…
Regards, Jennie
On 31 Jan 2020, at 08:52, DEMBELE Simon Pierre simon-pierre.dembele@ensma.fr wrote:
hello,
I want to know if it is possible to change how monetdb choose a plan by adding new contraints.
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Hello,
I want for example to choose plan based on the definition of new models. - how to integrade this model in monetdb - Use this model to do the choice between two plan.