private Set<Type> getStandardPrimitiveTypes() {
ImmutableSet.Builder<Type> builder = ImmutableSet.builder();
// add unparametrized types
builder.addAll(typeRegistry.getTypes());
// add corner cases for parametrized types
builder.add(createDecimalType(1, 0));
builder.add(createDecimalType(17, 0));
builder.add(createDecimalType(38, 0));
builder.add(createDecimalType(17, 17));
builder.add(createDecimalType(38, 38));
builder.add(createVarcharType(0));
builder.add(createUnboundedVarcharType());
return builder.build();
}
