diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/unresolved.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/unresolved.scala
index 1c72ec0d69980..b1dcb465b4778 100644
--- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/unresolved.scala
+++ b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/unresolved.scala
@@ -104,12 +104,11 @@ object UnresolvedRelation {
       tableIdentifier: TableIdentifier,
       extraOptions: CaseInsensitiveStringMap,
       isStreaming: Boolean): UnresolvedRelation = {
-    UnresolvedRelation(
-      tableIdentifier.database.toSeq :+ tableIdentifier.table, extraOptions, isStreaming)
+    UnresolvedRelation(tableIdentifier.nameParts, extraOptions, isStreaming)
   }
 
   def apply(tableIdentifier: TableIdentifier): UnresolvedRelation =
-    UnresolvedRelation(tableIdentifier.database.toSeq :+ tableIdentifier.table)
+    UnresolvedRelation(tableIdentifier.nameParts)
 }
 
 /**
diff --git a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/parser/PlanParserSuite.scala b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/parser/PlanParserSuite.scala
index 0c66e6ae89c66..df396bf054849 100644
--- a/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/parser/PlanParserSuite.scala
+++ b/sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/parser/PlanParserSuite.scala
@@ -26,6 +26,7 @@ import org.apache.spark.sql.catalyst.plans._
 import org.apache.spark.sql.catalyst.plans.logical._
 import org.apache.spark.sql.internal.SQLConf
 import org.apache.spark.sql.types.{Decimal, DecimalType, IntegerType, LongType, StringType}
+import org.apache.spark.sql.util.CaseInsensitiveStringMap
 
 /**
  * Parser test cases for rules defined in [[CatalystSqlParser]] / [[AstBuilder]].
@@ -1893,4 +1894,15 @@ class PlanParserSuite extends AnalysisTest {
       parsePlan("SELECT * FROM a LIMIT ?"),
       table("a").select(star()).limit(PosParameter(22)))
   }
+
+  test("SPARK-45189: Creating UnresolvedRelation from TableIdentifier should include the" +
+    " catalog field") {
+    val tableId = TableIdentifier("t", Some("db"), Some("cat"))
+    val unresolvedRelation = UnresolvedRelation(tableId)
+    assert(unresolvedRelation.multipartIdentifier == Seq("cat", "db", "t"))
+    val unresolvedRelation2 = UnresolvedRelation(tableId, CaseInsensitiveStringMap.empty, true)
+    assert(unresolvedRelation2.multipartIdentifier == Seq("cat", "db", "t"))
+    assert(unresolvedRelation2.options == CaseInsensitiveStringMap.empty)
+    assert(unresolvedRelation2.isStreaming)
+  }
 }