RussellSpitzer commented on code in PR #12897:
URL: https://github.com/apache/iceberg/pull/12897#discussion_r2060518830
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core/src/test/java/org/apache/iceberg/TestPartitionSpecParser.java:
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@@ -95,6 +96,56 @@ public void testFromJsonWithFieldId() {
assertThat(spec.fields().get(1).fieldId()).isEqualTo(1000);
}
+ @TestTemplate
+ public void testFromJsonWithSourceIds() {
+ String specString =
+ "{\n"
+ + " \"spec-id\" : 1,\n"
+ + " \"fields\" : [ {\n"
+ + " \"name\" : \"id_bucket\",\n"
+ + " \"transform\" : \"bucket[8]\",\n"
+ + " \"source-ids\" : [ 1, 2 ],\n"
+ + " \"field-id\" : 1001\n"
+ + " }, {\n"
+ + " \"name\" : \"data_bucket\",\n"
+ + " \"transform\" : \"bucket[16]\",\n"
+ + " \"source-ids\" : [ 2, 3 ],\n"
+ + " \"field-id\" : 1000\n"
+ + " } ]\n"
+ + "}";
+
+ PartitionSpec spec = PartitionSpecParser.fromJson(table.schema(),
specString);
+
+ assertThat(spec.fields()).hasSize(2);
+ assertThat(spec.fields().get(0).sourceIds()).hasSize(2);
+ assertThat(spec.fields().get(1).sourceIds()).hasSize(2);
+ }
+
+ @TestTemplate
+ public void testFromJsonWithoutSourceIdAndSourceIds() {
+ String specString =
+ "{\n"
+ + " \"spec-id\" : 1,\n"
+ + " \"fields\" : [ {\n"
+ + " \"name\" : \"id_bucket\",\n"
+ + " \"transform\" : \"bucket[8]\",\n"
+ + " \"field-id\" : 1001\n"
+ + " }, {\n"
+ + " \"name\" : \"data_bucket\",\n"
+ + " \"transform\" : \"bucket[16]\",\n"
+ + " \"field-id\" : 1000\n"
+ + " } ]\n"
+ + "}";
+
+ assertThatThrownBy(
+ () -> {
+ PartitionSpecParser.fromJson(table.schema(), specString);
+ })
+ .isInstanceOf(IllegalArgumentException.class)
+ .hasMessage(
+ "Cannot parse partition field, either source-id or source-ids has
to be present");
+ }
Review Comment:
We should have some tests for "toJson" as well?
We also need a check that the validation for identity transforms still holds
true. Ie you cannot make a multi-arg transform with the same name as any of the
columns
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