grundprinzip commented on code in PR #38984:
URL: https://github.com/apache/spark/pull/38984#discussion_r1051535005


##########
python/pyspark/sql/connect/plan.py:
##########
@@ -343,6 +343,53 @@ def _repr_html_(self) -> str:
         """
 
 
+class Hint(LogicalPlan):
+    """Logical plan object for a Hint operation."""
+
+    def __init__(self, child: Optional["LogicalPlan"], name: str, params: 
List[Any]) -> None:
+        super().__init__(child)
+        self.name = name
+        self.params = params
+
+    def _convert_value(self, v: Any) -> proto.Expression.Literal:
+        value = proto.Expression.Literal()
+        if v is None:
+            value.null = True
+        elif isinstance(v, int):
+            value.integer = v
+        elif isinstance(v, str):
+            value.string = v
+        else:
+            raise ValueError(f"Could not convert literal for type {type(v)}")
+        return value
+
+    def plan(self, session: "SparkConnectClient") -> proto.Relation:
+        assert self._child is not None
+        plan = proto.Relation()
+        plan.hint.input.CopyFrom(self._child.plan(session))
+        plan.hint.name = self.name
+        for v in self.params:
+            param = proto.Expression.Literal()
+            param.CopyFrom(self._convert_value(v))
+            plan.hint.parameters.append(param)

Review Comment:
   ```suggestion
               plan.hint.parameters.append(self._convert_value(v))
   ```



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