simonvandel commented on code in PR #8566:
URL: https://github.com/apache/arrow-datafusion/pull/8566#discussion_r1443687586
##########
datafusion/common/src/functional_dependencies.rs:
##########
@@ -97,8 +108,39 @@ impl Constraints {
Constraint::Unique(indices)
})
}
- TableConstraint::ForeignKey { .. } => {
- _plan_err!("Foreign key constraints are not currently
supported")
+ TableConstraint::ForeignKey {
+ foreign_table,
+ columns,
+ name: _,
+ on_delete: _,
+ on_update: _,
+ referred_columns,
+ } => {
+ let get_indices = |c: &[Ident]| {
Review Comment:
You were of course right.
I have added a test in sql_integration.rs now.
Since we don't have the schema of the referenced table, I had to change the
referred_indices to be a referred_columns instead.
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