fix(eap): Has parent span filter

src/sentry/search/eap/columns.py

@@ -1,4 +1,4 @@
-from collections.abc import Callable
+from collections.abc import Callable, Iterable
 from dataclasses import dataclass, field
 from datetime import datetime
 from typing import Any, Literal, TypeAlias, TypedDict
@@ -44,7 +44,7 @@ class ResolvedColumn:
     # Processor is the function run in the post process step to transform a row into the final result
     processor: Callable[[Any], Any] | None = None
     # Validator to check if the value in a query is correct
-    validator: Callable[[Any], bool] | None = None
+    validator: Callable[[Any], bool] | list[Callable[[Any], bool]] | None = None
     # Indicates this attribute is a secondary alias for the attribute.
     # It exists for compatibility or convenience reasons and should NOT be preferred.
     secondary_alias: bool = False
@@ -56,9 +56,16 @@ def process_column(self, value: Any) -> Any:
         return value
 
     def validate(self, value: Any) -> None:
-        if self.validator is not None:
-            if not self.validator(value):
-                raise InvalidSearchQuery(f"{value} is an invalid value for {self.public_alias}")
+        if callable(self.validator):
+            if self.validator(value):
+                return
+            raise InvalidSearchQuery(f"{value} is an invalid value for {self.public_alias}")
+
+        elif isinstance(self.validator, Iterable):
+            for validator in self.validator:
+                if validator(value):
+                    return
+            raise InvalidSearchQuery(f"{value} is an invalid value for {self.public_alias}")
 
     @property
     def proto_type(self) -> AttributeKey.Type.ValueType:

src/sentry/search/eap/spans/attributes.py

@@ -21,7 +21,7 @@
 )
 from sentry.search.events.types import SnubaParams
 from sentry.search.utils import DEVICE_CLASS
-from sentry.utils.validators import is_event_id, is_span_id
+from sentry.utils.validators import is_empty_string, is_event_id, is_span_id
 
 
 def validate_event_id(value: str | list[str]) -> bool:
@@ -45,7 +45,7 @@ def validate_event_id(value: str | list[str]) -> bool:
             public_alias="parent_span",
             internal_name="sentry.parent_span_id",
             search_type="string",
-            validator=is_span_id,
+            validator=[is_empty_string, is_span_id],
         ),
         ResolvedAttribute(
             public_alias="span.action",

src/sentry/utils/validators.py

@@ -27,3 +27,7 @@ def is_event_id(value):
 
 def is_span_id(value):
     return bool(HEXADECIMAL_16_DIGITS.search(force_str(value)))
+
+
+def is_empty_string(value):
+    return force_str(value) == ""

tests/snuba/api/endpoints/test_organization_events_span_indexed.py

@@ -4271,3 +4271,58 @@ def test_empty_string_negation(self):
             },
         ]
         assert meta["dataset"] == self.dataset
+
+    def test_has_parent_span_filter(self):
+        spans = [
+            self.create_span(
+                {"parent_span_id": None},
+                start_ts=self.ten_mins_ago,
+            ),
+            self.create_span(
+                {},
+                start_ts=self.ten_mins_ago,
+            ),
+        ]
+        self.store_spans(spans, is_eap=self.is_eap)
+
+        response = self.do_request(
+            {
+                "field": ["parent_span"],
+                "query": "!has:parent_span",
+                "project": self.project.id,
+                "dataset": self.dataset,
+            }
+        )
+        assert response.status_code == 200, response.content
+        data = response.data["data"]
+        meta = response.data["meta"]
+        assert len(data) == 1
+        assert data == [
+            {
+                "id": spans[0]["span_id"],
+                "parent_span": None,
+                "project.name": self.project.slug,
+            }
+        ]
+        assert meta["dataset"] == self.dataset
+
+        response = self.do_request(
+            {
+                "field": ["parent_span"],
+                "query": "has:parent_span",
+                "project": self.project.id,
+                "dataset": self.dataset,
+            }
+        )
+        assert response.status_code == 200, response.content
+        data = response.data["data"]
+        meta = response.data["meta"]
+        assert len(data) == 1
+        assert data == [
+            {
+                "id": spans[1]["span_id"],
+                "parent_span": spans[1]["parent_span_id"],
+                "project.name": self.project.slug,
+            }
+        ]
+        assert meta["dataset"] == self.dataset