yevgenypats commented on code in PR #34343:
URL: https://github.com/apache/arrow/pull/34343#discussion_r1128574767


##########
go/arrow/csv/reader.go:
##########
@@ -721,6 +726,32 @@ func (r *Reader) parseDecimal256(field array.Builder, str 
string, prec, scale in
        field.(*array.Decimal256Builder).Append(val)
 }
 
+func (r *Reader) parseList(field array.Builder, str string) {
+       if r.isNull(str) {
+               field.AppendNull()
+               return
+       }
+       if !(strings.HasPrefix(str, "{") || strings.HasSuffix(str, "}")) {
+               r.err = errors.New("invalid list format. should start with '{' 
and end with '}'")
+               field.AppendNull()
+               return
+       }

Review Comment:
   Good catch. Fixed and added tests.



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