openinx commented on a change in pull request #1393:
URL: https://github.com/apache/iceberg/pull/1393#discussion_r478284990
##########
File path: flink/src/main/java/org/apache/iceberg/flink/FlinkCatalog.java
##########
@@ -320,19 +338,158 @@ public void renameTable(ObjectPath tablePath, String
newTableName, boolean ignor
}
}
- /**
- * TODO Add partitioning to the Flink DDL parser.
- */
@Override
public void createTable(ObjectPath tablePath, CatalogBaseTable table,
boolean ignoreIfExists)
- throws CatalogException {
- throw new UnsupportedOperationException("Not support createTable now.");
+ throws CatalogException, TableAlreadyExistException {
+ validateFlinkTable(table);
+
+ Schema icebergSchema = FlinkSchemaUtil.convert(table.getSchema());
+ PartitionSpec spec = toPartitionSpec(((CatalogTable)
table).getPartitionKeys(), icebergSchema);
+ Map<String, String> options = Maps.newHashMap(table.getOptions());
+
+ try {
+ icebergCatalog.createTable(
+ toIdentifier(tablePath),
+ icebergSchema,
+ spec,
+ options.get("location"),
+ options);
+ } catch (AlreadyExistsException e) {
+ throw new TableAlreadyExistException(getName(), tablePath, e);
+ }
}
@Override
public void alterTable(ObjectPath tablePath, CatalogBaseTable newTable,
boolean ignoreIfNotExists)
- throws CatalogException {
- throw new UnsupportedOperationException("Not support alterTable now.");
+ throws CatalogException, TableNotExistException {
+ validateFlinkTable(newTable);
+ Table icebergTable = getIcebergTable(tablePath);
+ CatalogTable table = toCatalogTable(icebergTable);
+
+ // Currently, Flink SQL only support altering table properties.
+
+ if (!table.getSchema().equals(newTable.getSchema())) {
+ throw new UnsupportedOperationException("Altering schema is not
supported yet.");
+ }
+
+ if (!table.getPartitionKeys().equals(((CatalogTable)
newTable).getPartitionKeys())) {
+ throw new UnsupportedOperationException("Altering partition keys is not
supported yet.");
+ }
+
+ Map<String, String> oldOptions = table.getOptions();
+ Map<String, String> setProperties = Maps.newHashMap();
+
+ String setLocation = null;
+ String setSnapshotId = null;
+ String pickSnapshotId = null;
+
+ for (Map.Entry<String, String> entry : newTable.getOptions().entrySet()) {
+ String key = entry.getKey();
+ String value = entry.getValue();
+
+ if (Objects.equals(value, oldOptions.get(key))) {
+ continue;
+ }
+
+ if ("location".equalsIgnoreCase(key)) {
+ setLocation = value;
+ } else if ("current-snapshot-id".equalsIgnoreCase(key)) {
+ setSnapshotId = value;
+ } else if ("cherry-pick-snapshot-id".equalsIgnoreCase(key)) {
+ pickSnapshotId = value;
+ } else {
+ setProperties.put(key, value);
+ }
+ }
+
+ oldOptions.keySet().forEach(k -> {
+ if (!newTable.getOptions().containsKey(k)) {
+ setProperties.put(k, null);
Review comment:
Q: Does this align with the flink sql semantics ?
I saw the
[document](https://ci.apache.org/projects/flink/flink-docs-release-1.11/dev/table/sql/alter.html#alter-table)
said: "Set one or more properties in the specified table. If a particular
property is already set in the table, override the old value with the new one."
```sql
ALTER TABLE [catalog_name.][db_name.]table_name SET (key1=val1, key2=val2,
...)
```
For the existing key-values (in old table ) which don't appear in the new
table, should we remove them from old table ? ( The document did not describe
this case clearly, just for confirmation).
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