nastra commented on code in PR #8147:
URL: https://github.com/apache/iceberg/pull/8147#discussion_r1314447881
##########
core/src/main/java/org/apache/iceberg/view/ViewMetadata.java:
##########
@@ -91,41 +111,325 @@ default ViewMetadata checkAndNormalize() {
"Unsupported format version: %s",
formatVersion());
- Preconditions.checkArgument(versions().size() > 0, "Invalid view versions:
empty");
- Preconditions.checkArgument(history().size() > 0, "Invalid view history:
empty");
- Preconditions.checkArgument(schemas().size() > 0, "Invalid schemas:
empty");
+ return this;
Review Comment:
this was because we initially did history **normalization** in this method,
which required to return either `this` or a new instance
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