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Questions - constraints

How can I do to find which constraints identify the optimal vertex and which ones do not?

I have found the optimal and all the values ​​of the variables, how can I do to find the constraints that make me the optimal vertex? Is there a method or something like that? These are my constraints...
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Paolo

java

constraints

gurobi

vertex

Votes: 0

Answers: 1

Latest Answer

You need to look at the constraint attributes. To do this, you should save references to the GRBConstr objects when you call GRBModel.addConstr().
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Greg Glockner

Partial unique index in Postgres to ensure existence of a row that satisfies the constraint?

I have a users table, a teams table and a users_teams table. I am looking for a way in postgres to do the following: I want to ensure that a user always has a default team, a record with is_default tr...
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bencex

postgresql

constraints

unique-constraint

unique-index

Votes: 0

Answers: 1

Latest Answer

Add a foreign key that is NOT NULL to the users table that points to the default team of the user.
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Laurenz Albe

Adding a foreign key constraint referencing to primary key columns

I am applying a foreign key constraint to a table(datareal.official). Should I always refer to the same columns in the primary key of the other tabel (datareal.officialcarriage). Or could I theoretica...
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hering

sql

foreign-keys

constraints

primary-key

Votes: 0

Answers: 0

Spark for Constraint Engine

I have just started learning Spark and have setup a small cluster too on top of Yarn and Hdfs. I have submitted small jobs for testing as well. However, I want to know if we can use Spark as a realtim...
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Akki G

apache-spark

pyspark

constraints

Votes: 0

Answers: 0

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