peach12345 commented on code in PR #14932:
URL: https://github.com/apache/iceberg/pull/14932#discussion_r2727031271
##########
api/src/main/java/org/apache/iceberg/catalog/TableIdentifier.java:
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@@ -26,10 +27,10 @@
import org.apache.iceberg.relocated.com.google.common.collect.Iterables;
/** Identifies a table in iceberg catalog. */
-public class TableIdentifier {
+public class TableIdentifier implements Serializable {
Review Comment:
The parsing function is, of course, working as intended.
However, in the CatalogTableLoader class, when you pass in a
TableIdentifier, the identifier is stored as a string:
```
private CatalogTableLoader(CatalogLoader catalogLoader, TableIdentifier
tableIdentifier) {
this.catalogLoader = catalogLoader;
this.identifier = tableIdentifier.toString();
}
```
Later, when calling the loadTable function, that string is parsed again.
This fails when the table name contains dots:
```
public Table loadTable() {
FlinkEnvironmentContext.init();
return catalog.loadTable(TableIdentifier.parse(identifier));
}
```
That’s why storing the full TableIdentifier object instead of its string
representation makes more sense.
Fixing the parsing function to properly handle dots would also be a valid
approach, but in my experience, relying on parsing often leads to subtle errors
or bugs.
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