Fixed reading nested stats

examples/parquet_read.rs

@@ -20,10 +20,11 @@ fn main() -> Result<(), Error> {
     // we can filter the columns we need (here we select all)
     let schema = schema.filter(|_index, _field| true);
 
-    // we can read the statistics of all parquet's row groups (here for the first field)
-    let statistics = read::statistics::deserialize(&schema.fields[0], &metadata.row_groups)?;
-
-    println!("{:#?}", statistics);
+    // we can read the statistics of all parquet's row groups (here for each field)
+    for field in &schema.fields {
+        let statistics = read::statistics::deserialize(field, &metadata.row_groups)?;
+        println!("{:#?}", statistics);
+    }
 
     // say we found that we only need to read the first two row groups, "0" and "1"
     let row_groups = metadata

src/io/parquet/read/statistics/list.rs

@@ -40,7 +40,7 @@ impl MutableArray for DynMutableListArray {
 
         match self.data_type.to_logical_type() {
             DataType::List(_) => {
-                let offsets = vec![0, inner.len() as i32].into();
+                let offsets = (0..=inner.len() as i32).collect::<Vec<_>>().into();
                 Box::new(ListArray::<i32>::new(
                     self.data_type.clone(),
                     offsets,
@@ -49,7 +49,7 @@ impl MutableArray for DynMutableListArray {
                 ))
             }
             DataType::LargeList(_) => {
-                let offsets = vec![0, inner.len() as i64].into();
+                let offsets = (0..=inner.len() as i64).collect::<Vec<_>>().into();
                 Box::new(ListArray::<i64>::new(
                     self.data_type.clone(),
                     offsets,