swapna267 commented on code in PR #12116:
URL: https://github.com/apache/iceberg/pull/12116#discussion_r1934430629
##########
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:
Tables can be created using LIKE
1. Flink Catalog - Not supported currently.
2. Another table in Iceberg catalog itself as detailed in
[doc](https://iceberg.apache.org/docs/nightly/flink-ddl/#create-table-like)
This check basically fails, if we try to create table using LIKE in Iceberg
catalog, basically case#2 if we have **connector=iceberg** in options.
In order to support Case#1 without user setting any extra Options using WITH
clause, we need to add connector in getTable,
https://github.com/apache/iceberg/blob/52bfbdc0b03bafb610efde8486a6633be2b9cc4f/flink/v1.20/flink/src/main/java/org/apache/iceberg/flink/FlinkCatalog.java#L344
This check was added in very old PR,
https://github.com/apache/iceberg/pull/2666
https://github.com/apache/iceberg/pull/2666#discussion_r660569612 where
Flink SQL didn't support CREATE TABLE A LIKE B , where A and B are in different
Catalogs.
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