swapna267 commented on code in PR #12116:
URL: https://github.com/apache/iceberg/pull/12116#discussion_r1947295585
##########
flink/v1.20/flink/src/main/java/org/apache/iceberg/flink/FlinkCatalog.java:
##########
@@ -384,13 +395,6 @@ public void renameTable(ObjectPath tablePath, String
newTableName, boolean ignor
@Override
public void createTable(ObjectPath tablePath, CatalogBaseTable table,
boolean ignoreIfExists)
throws CatalogException, TableAlreadyExistException {
- if (Objects.equals(
- table.getOptions().get("connector"),
FlinkDynamicTableFactory.FACTORY_IDENTIFIER)) {
- throw new IllegalArgumentException(
- "Cannot create the table with 'connector'='iceberg' table property
in "
- + "an iceberg catalog, Please create table with
'connector'='iceberg' property in a non-iceberg catalog or "
- + "create table without 'connector'='iceberg' related properties
in an iceberg table.");
- }
Review Comment:
createTable in this catalog is called only when Source table is an Iceberg
Table. Currently the Catalog information comes when Catalog is created.
Following are the scenarios when getTable / createTable methods in this
Catalog are being used.
1. Create Iceberg table in Iceberg catalog -> Only createTable is called,
where Catalog instance has all catalog related info.
2. Create table in iceberg catalog catalog1 like table in iceberg catalog
catalog1 -> getTable() sets schema/partitioning info , which is used to create
the table with same schema/partitioning as source in Catalog1.
3. Create table in iceberg catalog catalog2 like table in iceberg catalog
catalog1 -> getTable() sets schema/partitioning info , which is used to create
the table with same schema/partitioning as source in Catalog2.
4. Create table in Flink catalog like table in iceberg catalog -> getTable()
is only called to get the source table info and createTable called on Flink
catalog, where connector/iceberg catalog properties are being used to
instantiate FlinkDynamicTableFactory.
When createTable is invoked, currently there is no easy way to differentiate
between Case 2) / Case 3) / Case 4) Or user is doing
```
CREATE TABLE `hive_catalog`.`default`.`sample_like`
WITH ('connector'='iceberg', 'catalog-name'='')
```
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