Issues

• 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

• 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

• 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

• core: FieldReference.check() accepts an expression root together with an outer or lambda scope, and toProto silently drops the scope

  substrait-io/substrait-java#1371 · Filter by author nielspardon opened on Oct 5, 2026

• spark: a Hive INSERT carries overwrite in create_mode, which other consumers ignore, so INSERT OVERWRITE can run as an append

  substrait-io/substrait-java#1370 · Filter by author nielspardon opened on Oct 5, 2026

• spark: a file write's target directory is emitted as an unescaped uri_file, so a path containing a space fails to import

  substrait-io/substrait-java#1369 · Filter by author nielspardon opened on Oct 5, 2026

• spark: a CTAS with REPLACE_IF_EXISTS against an existing table fails with an AssertionError instead of replacing it

  substrait-io/substrait-java#1368 · Filter by author nielspardon opened on Oct 5, 2026

• spark: a CTAS round trip drops the target's partitioning and provider

  substrait-io/substrait-java#1366 · Filter by author nielspardon opened on Oct 5, 2026

• spark: default names over a folded Aggregate inline the measure's alias, so the column can't be selected

  substrait-io/substrait-java#1367 · Filter by author nielspardon opened on Oct 5, 2026

• spark: ToLogicalPlan folds every Project over an Aggregate, so kept Projects don't round-trip and IN predicates fail on Spark 3.x

  substrait-io/substrait-java#1365 · Filter by author nielspardon opened on Oct 5, 2026

• spark: a round-tripped write targets a stand-in table instead of the real one, so caches go stale and Hive inserts use the wrong storage format

  substrait-io/substrait-java#1364 · Filter by author nielspardon opened on Oct 5, 2026

• spark: a file write drops its format options, so an encrypted Parquet table gets plaintext files and a CSV sep is ignored

  substrait-io/substrait-java#1362 · Filter by author nielspardon opened on Oct 5, 2026

• spark: ToLogicalPlan drops hint.output_names for struct outputs and throws on a short hint

  substrait-io/substrait-java#1363 · Filter by author nielspardon opened on Oct 5, 2026