fix: list-mode insert_all/upsert_all with hash_id misaligns values

[harsh-thakkar7]

insert_all() / upsert_all() in list mode (records as lists, first yielded list is the column names) misassigned every row when hash_id= was used:

>>> from sqlite_utils import Database
>>> db = Database(memory=True)
>>> db["t"].insert_all([["a", "b"], [1, "x"], [2, "y"]], hash_id="id")
>>> list(db["t"].rows)
# Boom: every value shifted one column left, never hashed
[{'id': '1', 'a': 'x', 'b': None}, {'id': '2', 'a': 'y', 'b': None}]

insert_all() correctly made id the first column, but the raw row lists were then paired against that expanded column list — so the value that should have been the hash key was stuffed into id, the data columns all slid left, and the last column went NULL. The stored rows are also silently wrong (no hash was ever computed).

Fix

In list mode, when hash_id is set, compute the hash from the user-declared values (dict(zip(user_columns, row))) and prepend it, so value positions stay aligned with all_columns. Short rows are still padded with None and long rows truncated — but only against the user-declared columns, before the hash is computed.

The stored hash keys now match exactly what dict-mode hash_id produces for the same data, and the values stay in their correct columns:

[{'id': '6773f537...', 'a': 1, 'b': 'x'}, {'id': '150c1d4a...', 'a': 2, 'b': 'y'}]

Tests

Added to tests/test_list_mode.py:

• test_insert_all_list_mode_with_hash_id_aligns_values — values land in the right columns and id is the correct hash for each row (fails before this change).
• test_insert_all_list_mode_with_hash_id_pads_and_truncates — short rows are padded before hashing; over-long rows are truncated.
• test_upsert_all_list_mode_with_hash_id — same guarantees for upserts.

pytest -q tests/test_list_mode.py   # 18 passed
pytest -q                           # 1503 passed, 16 skipped

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📚 Documentation preview 📚: https://sqlite-utils--880.org.readthedocs.build/en/880/

[harsh-thakkar7]

Closing this — I don't think this change is mature enough to land right now. Thanks for the project!