add having_druid back into the schema (#20879)

superset/charts/schemas.py

@@ -851,6 +851,12 @@ class ChartDataExtrasSchema(Schema):
         description="HAVING clause to be added to aggregate queries using "
         "AND operator.",
     )
+    having_druid = fields.List(
+        fields.Nested(ChartDataFilterSchema),
+        description="HAVING filters to be added to legacy Druid datasource queries. "
+        "This field is deprecated",
+        deprecated=True,
+    )
     time_grain_sqla = fields.String(
         description="To what level of granularity should the temporal column be "
         "aggregated. Supports "

tests/common/query_context_generator.py

@@ -22,7 +22,7 @@ from superset.common.chart_data import ChartDataResultType
 from superset.utils.core import AnnotationType, DTTM_ALIAS
 
 query_birth_names = {
-    "extras": {"where": "", "time_grain_sqla": "P1D"},
+    "extras": {"where": "", "time_grain_sqla": "P1D", "having_druid": []},
     "columns": ["name"],
     "metrics": [{"label": "sum__num"}],
     "orderby": [("sum__num", False)],