[Go] [Parquet] panic writing with DeltaBinaryPacked when column only has nulls #35718
Description
Describe the bug, including details regarding any error messages, version, and platform.
The writer panics if DeltaBinaryPacked encoding is requested for a column that is all null. The following small change to an existing test case demonstrates the issue.
In case it matters, I'm using go version go1.20.4 darwin/amd64
I ran into this issue using arrow v12.0.0, but this changed testcase fails using the current head of main.
diff --git a/go/parquet/pqarrow/encode_arrow_test.go b/go/parquet/pqarrow/encode_arrow_test.go
index 877f584f2..0b83ec696 100644
--- a/go/parquet/pqarrow/encode_arrow_test.go
+++ b/go/parquet/pqarrow/encode_arrow_test.go
@@ -380,6 +380,8 @@ func TestWriteEmptyLists(t *testing.T) {
props := parquet.NewWriterProperties(
parquet.WithVersion(parquet.V1_0),
+ parquet.WithDictionaryDefault(false),
+ parquet.WithEncoding(parquet.Encodings.DeltaBinaryPacked),
)
arrprops := pqarrow.DefaultWriterProps()
var buf bytes.Buffer
Component(s)
Go