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new 3e7d1e9a98 [Minor] improvement(docs): Remove support for data type
`map` and `interval_year` for Lance table in docs. (#9494)
3e7d1e9a98 is described below
commit 3e7d1e9a98ee50eca2206b3c75a28f180705b371
Author: Mini Yu <[email protected]>
AuthorDate: Wed Dec 17 20:10:36 2025 +0800
[Minor] improvement(docs): Remove support for data type `map` and
`interval_year` for Lance table in docs. (#9494)
### What changes were proposed in this pull request?
This pull request updates the documentation for Lance's support of
Apache Arrow types, clarifying which types are not supported. The most
important changes are clarifications in the type mapping table to
indicate unsupported types.
Documentation updates:
* Updated the type mapping table in
`docs/lakehouse-generic-lance-table.md` to clarify that the `Map` type
is not supported by Lance, instead of mapping it to Arrow's `Map` type.
* Updated the type mapping table to indicate that `Interval_year` is not
supported by Lance, instead of mapping it to Arrow's
`Interval(YearMonth)` type.
### Why are the changes needed?
Data type `map` and `interval(yearmonth)` are not supported by Lance in
release 0.39.0
### Does this PR introduce _any_ user-facing change?
N/A
### How was this patch tested?
Test locally.
---
docs/lakehouse-generic-lance-table.md | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/docs/lakehouse-generic-lance-table.md
b/docs/lakehouse-generic-lance-table.md
index 174e5f9a8c..62f7b6ef22 100644
--- a/docs/lakehouse-generic-lance-table.md
+++ b/docs/lakehouse-generic-lance-table.md
@@ -48,7 +48,7 @@ Lance uses Apache Arrow for table schemas. The following
table shows type mappin
| Gravitino Type | Arrow Type |
|----------------------------------|-----------------------------------------|
| `Struct` | `Struct` |
-| `Map` | `Map` |
+| `Map` | Not supported by Lance |
| `List` | `Array` |
| `Boolean` | `Boolean` |
| `Byte` | `Int8` |
@@ -72,7 +72,7 @@ Lance uses Apache Arrow for table schemas. The following
table shows type mappin
| `Time`/`Time(9)` | `Time Nanosecond` |
| `Null` | `Null` |
| `Fixed(n)` | `Fixed-Size Binary(n)` |
-| `Interval_year` | `Interval(YearMonth)` |
+| `Interval_year` | Not supported by Lance |
| `Interval_day` | `Duration(Microsecond)` |
| `External(arrow_field_json_str)` | Any Arrow Field |
