feat(explore): add multi-key support for has: search filter

[manessaraj]

Extends the has: search filter to accept a comma-separated list of attribute keys, allowing users to assert the presence of any of the multiple span attributes in a single token.

Previously, checking for multiple keys required chaining with OR:
has:query.period OR has:query.error_reason

With this change, users can write:
has:[query.period,query.error_reason]

Fixes BROWSE-406

[linear]

BROWSE-406 Add multi-key support for `has:` search filter (e.g. `has:key_foo,key_bar`)

[cursor]

Cursor Bugbot has reviewed your changes and found 1 potential issue.

Bugbot Autofix prepared a fix for the issue found in the latest run.

• ✅ Fixed: Nested comprehension incorrectly unwraps SearchKey NamedTuples to strings
  • Corrected return type annotations from list[list[SearchKey]] to list[SearchKey] and removed the incorrect double-nested comprehension that was unwrapping SearchKey objects into strings.

Or push these changes by commenting:

@cursor push 696a15f77b

Preview (696a15f77b)

diff --git a/src/sentry/api/event_search.py b/src/sentry/api/event_search.py
--- a/src/sentry/api/event_search.py
+++ b/src/sentry/api/event_search.py
@@ -1813,7 +1813,7 @@
             str,  # ']'
             Node,  # terminating lookahead
         ],
-    ) -> list[list[SearchKey]]:
+    ) -> list[SearchKey]:
         return process_list(children[1], children[2])
 
     def visit_has_in_filter(
@@ -1824,11 +1824,11 @@
             Node,  # has: lookahead
             SearchKey,  # SearchKey('has')
             Node,  # :
-            list[list[SearchKey]],
+            list[SearchKey],
         ],
     ) -> ParenExpression:
         (negation, _, _, _, search_key_lst) = children
-        search_keys: list[SearchKey] = [sk for sublist in search_key_lst for sk in sublist]
+        search_keys: list[SearchKey] = search_key_lst
 
         # if it matched search value instead, it's not a valid key
         if any(isinstance(search_key, SearchValue) for search_key in search_keys):

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[wmak]

🧑‍🍳 Looks great!