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feat: add columns using pyarrow schema (#2284)

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Lei Xu
2025-03-28 08:51:50 -07:00
committed by GitHub
parent c321cccc12
commit f52d05d3fa
4 changed files with 75 additions and 8 deletions
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31
python/python/tests/test_table.py
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@@ -1384,6 +1384,37 @@ async def test_add_columns_async(mem_db_async: AsyncConnection):
assert data["new_col"].to_pylist() == [2, 3]
@pytest.mark.asyncio
async def test_add_columns_with_schema(mem_db_async: AsyncConnection):
data = pa.table({"id": [0, 1]})
table = await mem_db_async.create_table("my_table", data=data)
await table.add_columns(
[pa.field("x", pa.int64()), pa.field("vector", pa.list_(pa.float32(), 8))]
)
assert await table.schema() == pa.schema(
[
pa.field("id", pa.int64()),
pa.field("x", pa.int64()),
pa.field("vector", pa.list_(pa.float32(), 8)),
]
)
table = await mem_db_async.create_table("table2", data=data)
await table.add_columns(
pa.schema(
[pa.field("y", pa.int64()), pa.field("emb", pa.list_(pa.float32(), 8))]
)
)
assert await table.schema() == pa.schema(
[
pa.field("id", pa.int64()),
pa.field("y", pa.int64()),
pa.field("emb", pa.list_(pa.float32(), 8)),
]
)
def test_alter_columns(mem_db: DBConnection):
data = pa.table({"id": [0, 1]})
table = mem_db.create_table("my_table", data=data)