Issues

• Commit retry (0.12) always fails on catalogs that expose only the current snapshot (e.g. Nessie REST): "Cannot find starting snapshot", even for appends

  kind:bug
  apache/iceberg-python#4327 · Filter by author tgmdimauro opened on Nov 10, 2026

• REST: create_table_transaction drops vended storage-credentials

  apache/iceberg-python#4325 · Filter by author kdn36 opened on Nov 10, 2026

• SqlCatalog: accept an existing SQLAlchemy Engine

  apache/iceberg-python#4322 · Filter by author Remenby31 opened on Nov 10, 2026

• add_column changes the values of an existing column for files without field IDs

  apache/iceberg-python#4318 · Filter by author kdn36 opened on Nov 9, 2026

• A retried transaction validates a write on one branch against another branch's commits

  apache/iceberg-python#4316 · Filter by author avison9 opened on Nov 9, 2026

• update_spec and create_table accept two partition fields with the same name

  apache/iceberg-python#4304 · Filter by author sohailshk opened on Nov 8, 2026

• Cache manifest and manifest-list bytes by location, as Iceberg Java's io.manifest.cache-* does

  apache/iceberg-python#4300 · Filter by author fangchenli opened on Nov 6, 2026

• Filter manifest lists on pyiceberg-core Arrow output in plan_files

  apache/iceberg-python#4299 · Filter by author mbutrovich opened on Nov 6, 2026
  1

• Filter manifest entries on pyiceberg-core Arrow output in plan_files

  apache/iceberg-python#4298 · Filter by author mbutrovich opened on Nov 6, 2026
  1

• Build inspect.entries() and inspect.files() from pyiceberg-core Arrow output

  apache/iceberg-python#4297 · Filter by author mbutrovich opened on Nov 6, 2026
  1

• Transaction.table_metadata deep-copies the whole table metadata on every read, making commits quadratic in snapshot count

  apache/iceberg-python#4294 · Filter by author raufer opened on Nov 6, 2026
  1

• Partial deletes can bring back rows removed by earlier delete files

  kind:bug
  apache/iceberg-python#4291 · Filter by author kdn36 opened on Nov 5, 2026

• Avro read fails with ResolveError when the file has a map/list/struct field not in the read schema

  apache/iceberg-python#4288 · Filter by author haizhou-zhao opened on Nov 4, 2026

• Converting an infinity float/double literal to Decimal raises a bare decimal.InvalidOperation

  apache/iceberg-python#4286 · Filter by author AP24110011695 opened on Nov 4, 2026

• Negative-scale Decimals (e.g. 1E+2) are corrupted by DecimalLiteral.increment/decrement and truncate_decimal

  apache/iceberg-python#4284 · Filter by author AP24110011695 opened on Nov 4, 2026

• delete() and overwrite() raise Cannot create expression literal from NaN on a NaN identity partition

  apache/iceberg-python#4277 · Filter by author hcrosse opened on Nov 3, 2026

• count() and to_arrow() disagree for != on a nullable identity partition

  apache/iceberg-python#4276 · Filter by author hcrosse opened on Nov 3, 2026

• [EPIC] Migrate static type checking to ty

  kind:feature request
  apache/iceberg-python#4271 · Filter by author oresttokovenko opened on Nov 2, 2026

• inspect.files() and the other file metadata tables raise ArrowInvalid when a snapshot has no manifests

  kind:bug
  apache/iceberg-python#4269 · Filter by author mbutrovich opened on Nov 2, 2026

• Scan raises ResolveError for a required identity-partition column that is not in the data file

  apache/iceberg-python#4267 · Filter by author slachiewicz opened on Nov 2, 2026

• After promoting a float column to double, > and != filters drop rows from older files

  kind:bug
  apache/iceberg-python#4203 · Filter by author RyanLin5967 opened on Oct 30, 2026

• A stale update_sort_order adds a second sort order with an existing id, which Java cannot load

  kind:bug
  apache/iceberg-python#4202 · Filter by author RyanLin5967 opened on Oct 30, 2026

• expire_snapshots on a stale table deletes a branch moved onto the expired snapshot

  kind:bug
  apache/iceberg-python#4200 · Filter by author RyanLin5967 opened on Oct 30, 2026

• A stale update_spec adds a partition field named like a column another writer added, which Java cannot load

  kind:bug
  apache/iceberg-python#4198 · Filter by author RyanLin5967 opened on Oct 30, 2026

• dynamic_partition_overwrite by identity(s.x) deletes rows by top-level x

  kind:bug
  apache/iceberg-python#4196 · Filter by author RyanLin5967 opened on Oct 30, 2026
  2