dramaticlly commented on code in PR #8340:
URL: https://github.com/apache/iceberg/pull/8340#discussion_r1377104943
##########
core/src/test/java/org/apache/iceberg/jdbc/TestJdbcCatalog.java:
##########
@@ -601,15 +601,81 @@ public void testDropNamespace() {
public void testCreateNamespace() {
Namespace testNamespace = Namespace.of("testDb", "ns1", "ns2");
assertThat(catalog.namespaceExists(testNamespace)).isFalse();
- // Test with no metadata
+ assertThat(catalog.namespaceExists(Namespace.of("testDb",
"ns1"))).isFalse();
catalog.createNamespace(testNamespace);
assertThat(catalog.namespaceExists(testNamespace)).isTrue();
+ assertThat(catalog.namespaceExists(Namespace.of("testDb"))).isTrue();
+ assertThat(catalog.namespaceExists(Namespace.of("testDb",
"ns1"))).isTrue();
+ assertThat(catalog.namespaceExists(Namespace.of("ns1", "ns2"))).isFalse();
+ assertThat(catalog.namespaceExists(Namespace.of("testDb",
"ns%"))).isFalse();
+ assertThat(catalog.namespaceExists(Namespace.of("testDb",
"ns_"))).isFalse();
+ assertThat(catalog.namespaceExists(Namespace.of("testDb", "ns1",
"ns2"))).isTrue();
+ assertThat(catalog.namespaceExists(Namespace.of("testDb", "ns1", "ns2",
"ns3"))).isFalse();
+ }
+
+ @Test
+ public void testCreateNamespaceWithBackslashCharacter() {
+
+ Namespace testNamespace = Namespace.of("test\\Db", "ns\\1", "ns3");
+ assertThat(catalog.namespaceExists(testNamespace)).isFalse();
+ catalog.createNamespace(testNamespace);
+ assertThat(catalog.namespaceExists(testNamespace)).isTrue();
+ assertThat(catalog.namespaceExists(Namespace.of("test\\Db",
"ns\\1"))).isTrue();
+ //
+ assertThat(catalog.namespaceExists(Namespace.of("test\\%Db",
"ns\\.1"))).isFalse();
+ assertThat(catalog.namespaceExists(Namespace.of("test%Db",
"ns\\.1"))).isFalse();
+ assertThat(catalog.namespaceExists(Namespace.of("test%Db"))).isFalse();
+ assertThat(catalog.namespaceExists(Namespace.of("test%"))).isFalse();
+ assertThat(catalog.namespaceExists(Namespace.of("test\\%"))).isFalse();
+ assertThat(catalog.namespaceExists(Namespace.of("test_Db",
"ns\\.1"))).isFalse();
+ }
+
+ @Test
+ public void testCreateNamespaceWithPercentCharacter() {
+
+ Namespace testNamespace = Namespace.of("testDb%", "ns%1");
+ assertThat(catalog.namespaceExists(testNamespace)).isFalse();
+ catalog.createNamespace(testNamespace);
+ assertThat(catalog.namespaceExists(testNamespace)).isTrue();
+ assertThat(catalog.namespaceExists(Namespace.of("testDb%"))).isTrue();
+ //
+ assertThat(catalog.namespaceExists(Namespace.of("testDb\\%"))).isFalse();
+ assertThat(catalog.namespaceExists(Namespace.of("testDb"))).isFalse();
+ assertThat(catalog.namespaceExists(Namespace.of("tes%Db%"))).isFalse();
+ assertThat(catalog.namespaceExists(Namespace.of("testDb%",
"ns%"))).isFalse();
+ }
+
+ @Test
+ public void testCreateNamespaceWithUnderscoreCharacter() {
+ Namespace testNamespace = Namespace.of("test_Db", "ns_1", "ns_");
+ catalog.createNamespace(testNamespace);
+ assertThat(catalog.namespaceExists(testNamespace)).isTrue();
+ assertThat(catalog.namespaceExists(Namespace.of("test_Db",
"ns_1"))).isTrue();
+ //
+ assertThat(catalog.namespaceExists(Namespace.of("test_Db"))).isTrue();
+ assertThat(catalog.namespaceExists(Namespace.of("test_D_"))).isFalse();
+ assertThat(catalog.namespaceExists(Namespace.of("test_D%"))).isFalse();
+ assertThat(catalog.namespaceExists(Namespace.of("test_Db",
"ns_"))).isFalse();
+ assertThat(catalog.namespaceExists(Namespace.of("test_Db",
"ns_%"))).isFalse();
+ }
+
+ @Test
+ public void testCreateNamespaceWithDotCharacter() {
+ Namespace testNamespace = Namespace.of("test.Db", "ns1", "ns2");
+ catalog.createNamespace(testNamespace);
+ assertThat(catalog.namespaceExists(testNamespace)).isTrue();
+ assertThat(catalog.namespaceExists(Namespace.of("test.Db",
"ns1"))).isTrue();
+ // TODO FIX handle Dot (its namespace SEPERATOR)? in the namespace levels.
currently its
+ // accepted and threaded as a level
Review Comment:
thank you @rdblue , I didn't know this as well. Is this mandate come from
[implementation of createNamespace()
method](https://github.com/apache/iceberg/blob/main/api/src/main/java/org/apache/iceberg/catalog/SupportsNamespaces.java#L62)?
Trying to understand how it was enforced
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