doc(parquet): document arrow parquet mappings - #561
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zeroshade merged 3 commits intoNov 8, 2025
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zeroshade
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Nov 7, 2025
| // DURATION, INTERVAL_MONTHS, INTERVAL_DAY_TIME, INTERVAL_MONTH_DAY_NANO | ||
| // SPARSE_UNION, DENSE_UNION | ||
| // STRING_VIEW, BINARY_VIEW, LIST_VIEW, LARGE_LIST_VIEW | ||
| // LARGE_LIST, RUN_END_ENCODED |
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do we really error on LargeList here? I should probably fix that then :(
I need to get around to updating this to properly handle the view types.
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I think so. This test passes,
diff --git a/parquet/pqarrow/schema_test.go b/parquet/pqarrow/schema_test.go
index 6f5d14c7..f9817492 100644
--- a/parquet/pqarrow/schema_test.go
+++ b/parquet/pqarrow/schema_test.go
@@ -439,6 +439,7 @@ func TestUnsupportedTypes(t *testing.T) {
{typ: &arrow.MonthDayNanoIntervalType{}},
{typ: &arrow.DenseUnionType{}},
{typ: &arrow.SparseUnionType{}},
+ {typ: arrow.LargeListOf(arrow.PrimitiveTypes.Int32)},
}
for _, tc := range unsupportedTypes {
t.Run(tc.typ.ID().String(), func(t *testing.T) {
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Rationale for this change
Documents the Arrow to Parquet type conversions and documents which types have no conversion. Closes #403
What changes are included in this PR?
I'm sneaking this into the doc.go file for the parquet package so this PR just adds text tehre.
Are these changes tested?
Visually and partially with some unit tests (not included).
Are there any user-facing changes?
No