ayushi-agarwal opened a new issue, #9452:
URL: https://github.com/apache/incubator-gluten/issues/9452
### Description
I see this fallback when using map function:
(25) Project: Native validation failed:
Validation failed due to exception caught at
file:SubstraitToVeloxPlanValidator.cc line:1381 function:validate, thrown from
file:ExprCompiler.cpp line:477 function:compileRewrittenExpression,
reason:Scalar function map not registered with arguments: (VARCHAR, DOUBLE,
VARCHAR, DOUBLE, VARCHAR, DOUBLE, VARCHAR, DOUBLE, VARCHAR, DOUBLE). Found
function registered with the following signatures:
((K,V) -> map(K,V))
((K,V,K,V) -> map(K,V))
((K,V,K,V,K,V) -> map(K,V))
Is it because of this signature definition, can we just increase it more
than 6 inputs by chanigng the value to more than 3? @PHILO-HE
```
static std::vector<std::shared_ptr<exec::FunctionSignature>> signatures() {
// For the purpose of testing we introduce up to 6 inputs
// array(K), array(V) -> map(K,V)
std::vector<std::shared_ptr<exec::FunctionSignature>> signatures;
constexpr int kNumberOfSignatures = 3;
signatures.reserve(kNumberOfSignatures);
for (int i = 1; i <= kNumberOfSignatures; i++) {
auto builder = exec::FunctionSignatureBuilder()
.knownTypeVariable("K")
.typeVariable("V")
.returnType("map(K,V)");
for (int arg = 0; arg < i; arg++) {
builder.argumentType("K").argumentType("V");
}
signatures.push_back(builder.build());
}
return signatures;
}
```
### Gluten version
main branch
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