rdblue commented on a change in pull request #2096:
URL: https://github.com/apache/iceberg/pull/2096#discussion_r567323955
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File path: api/src/main/java/org/apache/iceberg/Schema.java
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@@ -328,6 +329,24 @@ private Schema internalSelect(Collection<String> names,
boolean caseSensitive) {
return TypeUtil.select(this, selected);
}
+ @Override
+ public boolean equals(Object other) {
+ if (this == other) {
+ return true;
+ } else if (!(other instanceof Schema)) {
+ return false;
+ }
+
+ Schema that = (Schema) other;
+ return struct.equals(that.struct) &&
+ Objects.equals(aliasToId, that.aliasToId);
+ }
+
+ @Override
+ public int hashCode() {
+ return Objects.hash(struct, aliasToId);
+ }
Review comment:
Why add `equals` and `hashCode` to `Schema`? The reason why we didn't
already have this implemented is that you can compare the type using
`schema.asStruct().equals(...)`. And we don't want to define whether two
schemas are "equal" based on the aliases because the same schema can have
different original aliases.
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