add support for the inspector

Author: dfalbel

extensions/positron-python/python_files/posit/positron/inspectors.py

@@ -1248,6 +1248,18 @@ def _is_active(self, value) -> bool:
         return True
 
 
+class RedshiftConnectionInspector(BaseConnectionInspector):
+    CLASS_QNAME = ("redshift_connector.Connection", "redshift_connector.core.Connection")
+
+    def _is_active(self, value) -> bool:
+        try:
+            # a connection is active if you can acquire a cursor from it
+            value.cursor()
+        except Exception:
+            return False
+        return True
+
+
 class IbisExprInspector(PositronInspector["ibis.Expr"]):
     def has_children(self) -> bool:
         return False
@@ -1290,6 +1302,7 @@ def to_plaintext(self) -> str:
     **dict.fromkeys(SnowflakeConnectionInspector.CLASS_QNAME, SnowflakeConnectionInspector),
     **dict.fromkeys(DatabricksConnectionInspector.CLASS_QNAME, DatabricksConnectionInspector),
     **dict.fromkeys(BigQueryConnectionInspector.CLASS_QNAME, BigQueryConnectionInspector),
+    **dict.fromkeys(RedshiftConnectionInspector.CLASS_QNAME, RedshiftConnectionInspector),
     "ibis.Expr": IbisExprInspector,
     "boolean": BooleanInspector,
     "bytes": BytesInspector,