amogh-jahagirdar commented on code in PR #17500:
URL: https://github.com/apache/iceberg/pull/17500#discussion_r3724672046
##########
core/src/test/java/org/apache/iceberg/catalog/CatalogTests.java:
##########
@@ -966,6 +971,71 @@ public void testLoadTable() {
.containsAll(properties.entrySet());
}
+ @Test
+ public void testCreateTableWithVariantColumn() {
+ assumeThat(supportsVariant()).as("Catalog supports the variant
type").isTrue();
+
+ C catalog = catalog();
+
+ if (requiresNamespaceCreate()) {
+ catalog.createNamespace(TBL.namespace());
+ }
+
+ assertThat(catalog.tableExists(TBL)).as("Table should not
exist").isFalse();
+
+ Schema variantSchema =
+ new Schema(
+ required(1, "id", Types.LongType.get()),
+ optional(2, "data", Types.VariantType.get()),
+ optional(3, "list_data", Types.ListType.ofOptional(5,
Types.VariantType.get())),
+ optional(
+ 4,
+ "map_data",
+ Types.MapType.ofOptional(6, 7, Types.StringType.get(),
Types.VariantType.get())));
+
+ catalog
+ .buildTable(TBL, variantSchema)
+ .withLocation(baseTableLocation(TBL))
+ .withProperty(TableProperties.FORMAT_VERSION, "3")
+ .create();
+
+ assertThat(catalog.tableExists(TBL)).as("Table should exist").isTrue();
+
+ Table loaded = catalog.loadTable(TBL);
+ assertThat(loaded.schema().asStruct())
+ .as("Variant columns should round-trip through the catalog")
+ .isEqualTo(variantSchema.asStruct());
+ assertThat(TableUtil.formatVersion(loaded))
+ .as("Table with a variant column must be format version 3")
+ .isEqualTo(3);
+ }
+
+ @Test
+ public void testCreateV2TableWithVariantColumnFails() {
+ assumeThat(supportsVariant()).as("Catalog supports the variant
type").isTrue();
+
+ C catalog = catalog();
+
+ if (requiresNamespaceCreate()) {
+ catalog.createNamespace(TBL.namespace());
+ }
+
+ Schema variantSchema =
+ new Schema(
+ required(1, "id", Types.LongType.get()), optional(2, "data",
Types.VariantType.get()));
+
+ assertThatThrownBy(
+ () ->
+ catalog
+ .buildTable(TBL, variantSchema)
+ .withLocation(baseTableLocation(TBL))
+ .withProperty(TableProperties.FORMAT_VERSION, "2")
+ .create())
+ .hasMessageContaining("is not supported until v3");
Review Comment:
I'm not sure if this is what @laskoviymishka is saying but fundamentally
this test feels a bit weird to me. Is it even hitting the catalog? the
validation that's being triggered here should just be a purely client side
validation and so I'm not sure what we're really testing from a compatibility
angle here.
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