Function ValidateFunctionContext3

be/src/testutil/test-udas.cc:144–155

Defines AggStringIntermediate(DECIMAL(20,10), BIGINT, STRING) returns DECIMAL(20,0) intermediate STRING. Useful to test decimal input types with string as intermediate types.

// intermediate STRING.
// Useful to test decimal input types with string as intermediate types.
static void ValidateFunctionContext3(const FunctionContext* context) {
  assert(context->GetNumArgs() == 3);
  assert(context->GetArgType(0)->type == FunctionContext::TYPE_DECIMAL);
  assert(context->GetArgType(0)->precision == 20);
  assert(context->GetArgType(0)->scale == 10);
  assert(context->GetArgType(1)->type == FunctionContext::TYPE_BIGINT);
  assert(context->GetArgType(2)->type == FunctionContext::TYPE_STRING);
  assert(context->GetIntermediateType().type == FunctionContext::TYPE_STRING);
  assert(context->GetReturnType().type == FunctionContext::TYPE_DECIMAL);
  assert(context->GetReturnType().precision == 20);
  assert(context->GetReturnType().scale == 0);
}
IMPALA_UDF_EXPORT
void AggStringIntermediateUpdate(FunctionContext* context, const DecimalVal&,
    const BigIntVal&, const StringVal&, StringVal*) {