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Task
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Minor
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Resolution:
Done
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This task concern constraints on one table only.
Two indexes i1 and i2 are called constraint correlated if some of their parts are contained in the same constraint.
For example:
Consider table lineitem from dbt3 benchmark.
Index i1: on lineitem(l_shipdate)
Index i2: on lineitem(l_receiptdate)
And let's add constraint c on lineitem: l_shipdate < l_receiptdate
(can be easily checked that it is true for the lineitem table)
As i1 l_shipdate and i2 l_receiptdate both participate in c, indexes i1 and i2 are constraint correlated.
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