diff --git a/paimon-python/pypaimon/read/merge_engine_support.py b/paimon-python/pypaimon/read/merge_engine_support.py
index 321421b892ae..2dd0b5b6bc81 100644
--- a/paimon-python/pypaimon/read/merge_engine_support.py
+++ b/paimon-python/pypaimon/read/merge_engine_support.py
@@ -212,9 +212,8 @@ def check_supported(table) -> None:
                 "built-in aggregators ({}); retract opt-ins "
                 "(aggregation.remove-record-on-delete, "
                 "fields.<f>.ignore-retract) "
-                "and other aggregators (product / listagg / collect / "
-                "nested_update* / theta_sketch / "
-                "hll_sketch / roaring_bitmap_*) are not yet supported. "
+                "and other aggregators (hll_sketch / roaring_bitmap_*) "
+                "are not yet supported. "
                 "Open an issue to track support.".format(
                     ", ".join(sorted(unsupported)),
                     ", ".join(sorted(_AGGREGATION_SUPPORTED_AGG_FUNCS)),
@@ -264,8 +263,7 @@ def aggregation_unsupported_options(table) -> Set[str]:
        ``builtin_seq_comparator``).
     3. Out-of-scope aggregator selections: ``fields.<f>.aggregate-
        function`` and ``fields.default-aggregate-function`` set to an
-       identifier this engine doesn't support yet (e.g. ``collect``,
-       ``nested_update``).
+       identifier this engine doesn't support yet (e.g. ``hll_sketch``).
     """
     flagged: Set[str] = set()
     raw = table.options.options.to_map()
diff --git a/paimon-python/pypaimon/read/reader/aggregate/aggregators.py b/paimon-python/pypaimon/read/reader/aggregate/aggregators.py
index 5c325d99ebc7..9710d862533c 100644
--- a/paimon-python/pypaimon/read/reader/aggregate/aggregators.py
+++ b/paimon-python/pypaimon/read/reader/aggregate/aggregators.py
@@ -22,12 +22,13 @@
 via :func:`register_aggregator`, so importing
 ``pypaimon.read.reader.aggregate`` makes all of them discoverable.
 
-This module ships 10 aggregators — the primary-key placeholder plus
-the 9 most commonly-used value aggregators: ``primary_key`` /
+This module ships 18 aggregators — the primary-key placeholder plus
+the 17 most commonly-used value aggregators: ``primary_key`` /
 ``last_value`` / ``last_non_null_value`` / ``first_value`` /
 ``first_non_null_value`` / ``sum`` / ``max`` / ``min`` / ``bool_or``
-/ ``bool_and``. Other aggregators (``product`` / ``listagg`` /
-``collect`` / ``merge_map`` / ``nested_update`` / ``theta_sketch`` /
+/ ``bool_and`` / ``product`` / ``listagg`` / ``collect`` /
+``merge_map`` / ``merge_map_with_keytime`` / ``nested_update`` /
+``nested_partial_update`` / ``theta_sketch``. Other aggregators (
 ``hll_sketch`` / ``roaring_bitmap_*``) are intentionally deferred —
 the registry will report them as unsupported so users see a clear
 error rather than a silent fallback.
diff --git a/paimon-python/pypaimon/read/reader/aggregation_merge_function.py b/paimon-python/pypaimon/read/reader/aggregation_merge_function.py
index ae666734032a..704a6527feb0 100644
--- a/paimon-python/pypaimon/read/reader/aggregation_merge_function.py
+++ b/paimon-python/pypaimon/read/reader/aggregation_merge_function.py
@@ -27,10 +27,9 @@
 
 This is the **core merge semantics only**. Retract on DELETE /
 UPDATE_BEFORE rows (with ``aggregation.remove-record-on-delete`` and
-``fields.<field>.ignore-retract`` opt-ins) and ~14 additional
-aggregators (``product`` / ``listagg`` / ``collect`` / ``merge_map`` /
-``nested_update`` / ``theta_sketch`` / ``hll_sketch`` /
-``roaring_bitmap_*``) are intentionally deferred. Non-INSERT row
+``fields.<field>.ignore-retract`` opt-ins) and ~3 additional
+aggregators (``hll_sketch`` / ``roaring_bitmap_*``)
+are intentionally deferred. Non-INSERT row
 kinds raise ``NotImplementedError`` at :meth:`add` time so we never
 silently corrupt data with a half-implemented contract, and
 out-of-scope aggregator identifiers / options are rejected up-front in