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core: validateIntermediateSignature binds the intermediate expression from the state it is checking, so a bare-parameter intermediate can never mismatch

Status: Open.

#1279 In substrait-io/substrait-java;

· nielspardon opened on Sep 4, 2026

core: RelCopyOnWriteVisitor never visits a read relation's best-effort filter, so a rewrite there is silently dropped

bugSomething isn't workingSomething isn't working

corePull requests that update java codePull requests that update java code

Status: Open.

#1278 In substrait-io/substrait-java;

· nielspardon opened on Sep 4, 2026

spark: the Scala function-mapping registry diverges from isthmus' with nothing enforcing parity

Status: Open.

#1277 In substrait-io/substrait-java;

· nielspardon opened on Sep 4, 2026

isthmus: nothing detects a Substrait function that has no FunctionMappings entry but does have a Calcite operator

Status: Open.

#1276 In substrait-io/substrait-java;

· nielspardon opened on Sep 4, 2026

isthmus: REVERSE over a binary column silently converts through a latin-1 cast to reverse:str

Status: Open.

#1275 In substrait-io/substrait-java;

· nielspardon opened on Sep 4, 2026

isthmus: same-named Calcite operators from different SqlLibrary sets make ORDER BY over reverse/least/greatest fail validation

Status: Open.

#1274 In substrait-io/substrait-java;

· nielspardon opened on Sep 4, 2026

isthmus-cli: SqlLibraryOperators is not registered for reflection, so every library-operator mapping is unreachable in the native image

Status: Open.

#1273 In substrait-io/substrait-java;

· nielspardon opened on Sep 4, 2026

spark: an interval literal that overflows Spark's carrier throws a bare ArithmeticException

Status: Open.

#1271 In substrait-io/substrait-java;

· nielspardon opened on Sep 4, 2026

isthmus: PostgreSqlIntegrationTest logs SQL with printf specifiers, so SLF4J discards it

bugSomething isn't workingSomething isn't working

isthmus

Status: Open.

#1258 In substrait-io/substrait-java;

· nielspardon opened on Sep 3, 2026

build: no static analysis catches a String.format whose format string is not a literal

build

enhancementNew feature or requestNew feature or request

Status: Open.

#1257 In substrait-io/substrait-java;

· nielspardon opened on Sep 3, 2026

isthmus: SqlExpressionToSubstrait builds its base schema with the names-discarding toSubstrait, so nested field names are dropped

bugSomething isn't workingSomething isn't working

isthmus

Status: Open.

#1256 In substrait-io/substrait-java;

· nielspardon opened on Sep 3, 2026

isthmus: TypeConverter's switch NPEs on a type with no SqlTypeName, before the unsupported-type arm can report it

bugSomething isn't workingSomething isn't working

isthmus

Status: Open.

#1255 In substrait-io/substrait-java;

· nielspardon opened on Sep 3, 2026