thisisnic commented on code in PR #15211:
URL: https://github.com/apache/arrow/pull/15211#discussion_r1068210711
##########
r/tests/testthat/test-Array.R:
##########
@@ -1321,3 +1321,19 @@ test_that("Array to C-interface", {
delete_arrow_schema(schema_ptr)
delete_arrow_array(array_ptr)
})
+
+test_that("direct creation of Decimal Arrays (ARROW-11631)", {
+
+ decimal_array <- Array$create(1, type = decimal128(10, 2))
+ decimal_array2 <- Array$create(1, type = decimal256(10, 2))
+
+ expect_equal(
Review Comment:
Hmm, interesting...I now get this result:
```
> Array$create(c(1:10, NA))$cast(decimal128(10, 2))
Error: Invalid: Precision is not great enough for the result. It should be
at least 12
/home/nic2/arrow/cpp/src/arrow/compute/exec.cc:828
kernel_->exec(kernel_ctx_, input, out)
/home/nic2/arrow/cpp/src/arrow/compute/exec.cc:796 ExecuteSingleSpan(input,
&output)
/home/nic2/arrow/cpp/src/arrow/compute/function.cc:276
executor->Execute(input, &listener)
```
Looks like a bug given 10 significant digits is more than enough to
represent the integers 1 through 10
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