Reviewer feedback (2 items):
- Add a BOOL payload index for `is_placeholder` alongside the three
KEYWORD fields. Strict-mode index-required filtering on Qdrant Cloud
enforces a payload index on any field used in a `FieldCondition`
regardless of value type, so `get_placeholder_filter` and
`delete_placeholder_point` would have produced HTTP 400 on Cloud
instances even after this PR's KEYWORD fix.
Implementation: replace `_KEYWORD_PAYLOAD_FIELDS: tuple` with
`_PAYLOAD_INDEX_FIELDS: dict[str, PayloadSchemaType]` so each
field carries its own schema type. Rename
`_ensure_keyword_payload_indexes` to `_ensure_payload_indexes` since
the function now creates more than just KEYWORD indexes. The
per-field log line now includes the schema type
("Created KEYWORD payload index on 'doc_id'", "Created BOOL payload
index on 'is_placeholder'") so operators can tell which type was
created without checking the source.
- Correct the misleading `wait=True` docstring in
`_apply_backfill_writes`. The previous wording said
`_ensure_payload_indexes` runs "immediately after this function",
but `_apply_backfill_writes` is called in a loop inside
`_backfill_doc_id_to_string` — the index creation runs after the
backfill function *returns*, not after each write. Rewrote the
docstring to capture both load-bearing reasons:
(1) per-batch commit ordering for crash-recovery safety, and
(2) ensuring the keyword index built later covers committed
payloads only.
Adds `test_ensure_payload_indexes_includes_is_placeholder_as_bool`
asserting the schema type is BOOL specifically. Existing tests
updated to use the new dict-based registry (side_effect lists now
extend to all four entries; field-set assertions derive from the
registry instead of hardcoding 3 KEYWORD names).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
