RussellSpitzer commented on code in PR #13464:
URL: https://github.com/apache/iceberg/pull/13464#discussion_r2190497815
##########
spark/v3.4/spark/src/main/java/org/apache/iceberg/spark/Spark3Util.java:
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@@ -234,6 +234,13 @@ private static void apply(UpdateSchema pendingUpdate,
TableChange.AddColumn add)
add.isNullable(),
"Incompatible change: cannot add required column: %s",
leafName(add.fieldNames()));
+ if (add.defaultValue() != null) {
+ throw new UnsupportedOperationException(
+ String.format(
+ "Cannot add column %s since default values are currently
unsupported",
Review Comment:
"since setting default values in Spark is currently unsupported?"
I thought the columns can be read but the code for altering the schema is
missing?
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