Issues

• isthmus: FieldSelectionConverter converts the container operand before the ROW and MAP branches decline

  substrait-io/substrait-java#1409 · Filter by author nielspardon opened on Oct 11, 2026

• isthmus: OFFSET and ORDINAL with a NULL index fail to convert, though there is no error to preserve

  substrait-io/substrait-java#1408 · Filter by author nielspardon opened on Oct 11, 2026

• Update to Substrait v0.106.0

  substrait-io/substrait-java#1407 · Filter by author substrait-project-bot opened on Oct 11, 2026

• Isthmus: dynamic window functions fail with ClassCastException on Substrait → Calcite

  substrait-io/substrait-java#1405 · Filter by author nielspardon opened on Oct 9, 2026

• isthmus: imported sqrt:dec cannot be executed on Enumerable

  substrait-io/substrait-java#1402 · Filter by author nielspardon opened on Oct 9, 2026

• isthmus: honor concat IGNORE_NULLS and like CASE_INSENSITIVE by selecting a Calcite operator from the options

  substrait-io/substrait-java#1401 · Filter by author nielspardon opened on Oct 9, 2026

• isthmus: a BindableTableScan's pushed-down filters are dropped, so the converted read returns every row

  substrait-io/substrait-java#1399 · Filter by author nielspardon opened on Oct 9, 2026

• isthmus: binding targets are keyed by RelNode identity, so a reused scan instance gets a duplicate rel_anchor

  substrait-io/substrait-java#1398 · Filter by author nielspardon opened on Oct 9, 2026

• isthmus: RexFieldAccess over a ROW, CAST or CASE expression is rejected instead of converting to a struct field reference

  substrait-io/substrait-java#1397 · Filter by author nielspardon opened on Oct 9, 2026

• spark: a path-based Delta read is exported as plain Parquet, so deleted rows reappear and column-mapped columns read as null

  substrait-io/substrait-java#1388 · Filter by author nielspardon opened on Oct 7, 2026

• isthmus: map subscripts fail unless the map key type is unbounded VARCHAR

  substrait-io/substrait-java#1386 · Filter by author nielspardon opened on Oct 5, 2026
  1

• isthmus: ITEM on a ROW passes Calcite's 1-based index through as a 0-based struct field

  substrait-io/substrait-java#1385 · Filter by author nielspardon opened on Oct 5, 2026
  1

• core: an outer reference to a relation's own anchor from its embedded predicate is typed against the wrong row

  substrait-io/substrait-java#1384 · Filter by author nielspardon opened on Oct 5, 2026

• core: a Join with no condition serializes to a JoinRel that ProtoRelConverter cannot read back

  substrait-io/substrait-java#1383 · Filter by author nielspardon opened on Oct 5, 2026

• core: ExtensionTable drops its filter and best_effort_filter in both proto directions

  substrait-io/substrait-java#1382 · Filter by author nielspardon opened on Oct 5, 2026

• spark: no mapping for the sum0 aggregate

  substrait-io/substrait-java#1381 · Filter by author nielspardon opened on Oct 5, 2026

• core: SubstraitBuilder.equal() declares a required boolean for nullable operands

  substrait-io/substrait-java#1380 · Filter by author nielspardon opened on Oct 5, 2026

• core: SubstraitBuilder arithmetic aggregates hard-code the functions_arithmetic URN, so decimal and datetime inputs throw

  substrait-io/substrait-java#1379 · Filter by author nielspardon opened on Oct 5, 2026

• core: physical join Javadoc describes a removed left_keys fallback and reverses the hash build side

  substrait-io/substrait-java#1378 · Filter by author nielspardon opened on Oct 5, 2026

• core: HashJoin drops build_input, so the build side flips on every round trip

  substrait-io/substrait-java#1377 · Filter by author nielspardon opened on Oct 5, 2026

• core: FunctionOption accepts an empty preference list

  substrait-io/substrait-java#1376 · Filter by author nielspardon opened on Oct 5, 2026

• core: extended expressions omit version and drop expected_type_urls

  substrait-io/substrait-java#1375 · Filter by author nielspardon opened on Oct 5, 2026

• core: ProtoExtendedExpressionConverter cannot read a base schema with a user-defined type

  substrait-io/substrait-java#1374 · Filter by author nielspardon opened on Oct 5, 2026

• core: an extended-expression aggregate measure silently drops its pre-measure filter

  substrait-io/substrait-java#1373 · Filter by author nielspardon opened on Oct 5, 2026

• core: proto import types an outer FieldReference as the whole enclosing row instead of the referenced field

  substrait-io/substrait-java#1372 · Filter by author nielspardon opened on Oct 5, 2026