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fix: allow headerless empty remote blob probes

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This commit is contained in:
Gatefixer
2026-09-24 00:47:03 +00:00
parent 420192f505
commit 6a30bcbfdb
2 changed files with 37 additions and 24 deletions
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python/python/tests/test_remote_db.py
+16 -4
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@@ -2403,11 +2403,16 @@ def blob_remote_table(*, server_version=Version("0.5.0")):
elif request.path.startswith("/v1/table/test/blob/image/"):
path = request.path.partition("?")[0]
row_id = int(path.split("/")[-2])
payload = {10: b"alpha", 20: None, 30: b"gamma"}[row_id]
payload = {10: b"alpha", 20: None, 30: b"gamma", 40: b""}[row_id]
if payload is None:
request.send_response(204)
request.end_headers()
return
if not payload:
request.send_response(416)
request.send_header("Content-Range", "bytes */0")
request.end_headers()
return
byte_range = request.headers["Range"].removeprefix("bytes=")
start_text, end_text = byte_range.split("-", maxsplit=1)
start = int(start_text)
@@ -2416,6 +2421,9 @@ def blob_remote_table(*, server_version=Version("0.5.0")):
request.send_response(206)
request.send_header("Content-Range", f"bytes {start}-{end}/{len(payload)}")
request.send_header("Content-Length", str(len(chunk)))
request.send_header(
"x-lancedb-version", str(BLOB_DESCRIBE_RESPONSE["version"])
)
request.end_headers()
request.wfile.write(chunk)
elif request.path == "/v1/table/test/query/":
@@ -2459,17 +2467,21 @@ def test_remote_blob_columns_and_fetch():
def test_remote_blob_files_are_lazy_seekable_handles():
with blob_remote_table() as table:
files = table.fetch_blob_files("image", [10, 20, 30])
files = table.fetch_blob_files("image", [10, 20, 30, 40])
assert len(files) == 3
alpha, null_row, gamma = files
assert len(files) == 4
alpha, null_row, gamma, empty = files
assert null_row is None
assert alpha is not None
assert gamma is not None
assert empty is not None
assert alpha.size() == 5
assert alpha.read_range(1, 3) == b"lph"
gamma.seek(2)
assert gamma.read() == b"mma"
assert empty.size() == 0
assert empty.read() == b""
assert empty.read_range(0, 0) == b""
alpha.close()
assert alpha.closed
with pytest.raises(RuntimeError, match="already closed"):