Issues

• A CASE over two arrays of structs panics when the first branch's array has no NULL item and a later branch's has one

  lakehq/sail#2742 · Filter by author alexy opened on Oct 5, 2026

• A sort before a Parquet write is dropped with mode("overwrite")

  lakehq/sail#2741 · Filter by author alexy opened on Oct 3, 2026

• Delta commit treats its own landed log write as a lost race when an S3 PUT is retried

  lakehq/sail#2739 · Filter by author Robin-Everaars opened on Oct 3, 2026

• Iceberg REST commit reports a 5xx or timeout as a failure although the commit state is unknown

  lakehq/sail#2738 · Filter by author Robin-Everaars opened on Oct 3, 2026

• Support SQL parameters (spark.sql args) beyond SELECT queries

  lakehq/sail#2736 · Filter by author kunallakhanpal opened on Oct 3, 2026

• Iceberg commit deletes its own snapshot files when a retried metadata PUT returns 412, leaving the table unreadable

  lakehq/sail#2735 · Filter by author Robin-Everaars opened on Oct 2, 2026
  2

• Support the snapshot-property.<key> Iceberg write option

  lakehq/sail#2734 · Filter by author Robin-Everaars opened on Oct 2, 2026

• DELETE count means rows rewritten on some write paths and rows deleted on others

  lakehq/sail#2733 · Filter by author Robin-Everaars opened on Oct 2, 2026

• A sort before monotonically_increasing_id() is removed: the ids do not follow the sort

  lakehq/sail#2732 · Filter by author alexy opened on Oct 2, 2026

• partitionBy writes are 5 to 45 times slower than plain writes

  lakehq/sail#2731 · Filter by author alexy opened on Oct 2, 2026
  1

• The sort order in a Parquet footer (sorting_columns) is never used

  lakehq/sail#2730 · Filter by author alexy opened on Oct 2, 2026

• spark_partition_id() and monotonically_increasing_id() fail outside a projection

  lakehq/sail#2729 · Filter by author alexy opened on Oct 2, 2026

• repartitionByRange hash-partitions, silently

  lakehq/sail#2728 · Filter by author alexy opened on Oct 2, 2026

• DataFrameWriter.sortBy fails to resolve a column that exists

  lakehq/sail#2727 · Filter by author alexy opened on Oct 2, 2026

• A sort before a Delta write is removed; the same write to Parquet keeps it

  lakehq/sail#2726 · Filter by author alexy opened on Oct 2, 2026

• EXPLAIN fails for a sort-merge join that executes correctly

  lakehq/sail#2725 · Filter by author alexy opened on Oct 2, 2026
  1

• In cluster mode, GROUP BY over a table with a declared sort order fails with an internal error

  lakehq/sail#2724 · Filter by author alexy opened on Oct 2, 2026

• A table declared SORTED BY (c) is read as sorted NULLS LAST: ORDER BY c NULLS LAST returns nulls first

  lakehq/sail#2723 · Filter by author alexy opened on Oct 2, 2026

• checkpoint() after a sort returns wrong results

  lakehq/sail#2722 · Filter by author alexy opened on Oct 2, 2026

• INSERT INTO ... REPLACE WHERE fails on Iceberg tables with a NOT NULL column ("declared as non-nullable but contains null values")

  lakehq/sail#2721 · Filter by author ionnich opened on Oct 2, 2026
  1

• Iceberg REST: CTAS with a nested column writes field ids that don't match the table schema

  lakehq/sail#2720 · Filter by author ionnich opened on Oct 2, 2026
  1

• Support CREATE TABLE ... USING DELTA LOCATION '<path>' for Windows paths

  lakehq/sail#2718 · Filter by author linhr opened on Oct 2, 2026

• Iceberg INSERT OVERWRITE retries a 409 on the new head and silently deletes a concurrent append

  before next release
  lakehq/sail#2717 · Filter by author djouallah opened on Oct 2, 2026
  2

• WITH ... INSERT (CTE before INSERT) is rejected by the SQL parser

  before next release
  lakehq/sail#2714 · Filter by author ionnich opened on Oct 1, 2026
  1

  

• INSERT OVERWRITE ignores partitionOverwriteMode=dynamic on Iceberg tables (replaces whole table)

  lakehq/sail#2713 · Filter by author ionnich opened on Oct 1, 2026
  1