LB-Yu commented on code in PR #1509:
URL: https://github.com/apache/fluss/pull/1509#discussion_r2269224428
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fluss-server/src/main/java/com/alibaba/fluss/server/coordinator/MetadataManager.java:
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@@ -300,6 +303,65 @@ public long createTable(
"Fail to create table " + tablePath);
}
+ public void alterTable(
+ TablePath tablePath, TableDescriptor tableDescriptor, boolean
ignoreIfNotExists) {
+ // validate table properties before altering table
+ validateAlterTableProperties(tableDescriptor);
+
+ if (!databaseExists(tablePath.getDatabaseName())) {
+ throw new DatabaseNotExistException(
+ "Database " + tablePath.getDatabaseName() + " does not
exist.");
+ }
+ if (!tableExists(tablePath)) {
+ if (ignoreIfNotExists) {
+ return;
+ } else {
+ throw new TableNotExistException("Table " + tablePath + " does
not exists.");
+ }
+ }
+
+ try {
+ TableRegistration updatedTableRegistration =
+ getUpdatedTableRegistration(tablePath, tableDescriptor);
+ zookeeperClient.updateTable(tablePath, updatedTableRegistration);
+ } catch (Exception e) {
+ if (e instanceof KeeperException.NoNodeException) {
+ if (ignoreIfNotExists) {
+ return;
+ }
+ throw new TableNotExistException("Table " + tablePath + " does
not exists.");
+ } else {
+ throw new FlussRuntimeException("Failed to alter table: " +
tablePath, e);
+ }
+ }
+ }
+
+ private TableRegistration getUpdatedTableRegistration(
Review Comment:
I think we should check whether the property to be updated is the same as
the existing one, and if so, no changes are required.
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