Add catalog name to foreign key metadata in postgres catalog (spiceai#10917)

* fix(pg catalog): include catalog in FK foreign_table metadata

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

* refactor(pg): remove redundant catalog_name FK parameter

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

---------

Co-authored-by: Jeadie <jeadie@users.noreply.github.com>
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: Jeadie

crates/data_components/src/lib.rs

@@ -37,7 +37,7 @@ use datafusion::{
 /// [
 ///   {
 ///     "columns": ["customer_id"],
-///     "foreign_table": "public.customers",
+///     "foreign_table": "catalog.public.customers",
 ///     "foreign_columns": ["id"]
 ///   }
 /// ]

crates/data_components/src/postgres/provider.rs

@@ -70,6 +70,7 @@ type ForeignKeyMap = HashMap<String, Vec<ForeignKeyConstraint>>;
 /// A catalog provider for `PostgreSQL` that discovers schemas and tables
 /// by querying `information_schema`.
 pub struct PostgresCatalogProvider {
+    catalog_name: String,
     pool: Arc<PostgresConnectionPool>,
     table_creator: Arc<dyn Read>,
     schemas: RwLock<HashMap<String, Arc<PostgresSchemaProvider>>>,
@@ -86,11 +87,13 @@ impl std::fmt::Debug for PostgresCatalogProvider {
 impl PostgresCatalogProvider {
     #[must_use]
     pub fn new(
+        catalog_name: String,
         pool: Arc<PostgresConnectionPool>,
         table_creator: Arc<dyn Read>,
         include: Option<GlobSet>,
     ) -> Self {
         Self {
+            catalog_name,
             pool,
             table_creator,
             schemas: RwLock::new(HashMap::new()),
@@ -189,7 +192,10 @@ impl PostgresCatalogProvider {
 
             let table_constraints = constraints_by_table.entry(table_name).or_default();
 
-            let foreign_table = format!("{referenced_schema}.{referenced_table}");
+            let foreign_table = format!(
+                "{}.{}.{}",
+                self.catalog_name, referenced_schema, referenced_table
+            );
             let fk =
                 table_constraints
                     .entry(constraint_name)

crates/runtime/src/catalogconnector/postgres.rs

@@ -88,6 +88,7 @@ impl CatalogConnector for PostgresCatalog {
         let table_factory = Arc::new(PostgresTableFactory::new(Arc::clone(&pool)));
 
         let catalog_provider = Arc::new(PostgresCatalogProvider::new(
+            catalog.name.clone(),
             pool,
             table_factory,
             catalog.include.clone(),