samredai commented on a change in pull request #3677:
URL: https://github.com/apache/iceberg/pull/3677#discussion_r763392319
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File path: python/src/iceberg/table/metadata.py
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@@ -0,0 +1,215 @@
+import codecs
+import json
+from typing import Any, Optional, Union
+
+import boto3
+from jsonschema import validate as validate_json
+from jsonschema.exceptions import ValidationError
+
+from iceberg.io.s3 import S3Url
+
+TABLE_METADATA_V1_SCHEMA = {
+ "$schema": "http://json-schema.org/draft-04/schema#";,
+ "type": "object",
+ "properties": {
+ "format-version": {"type": "string"},
+ "table-uuid": {"type": "string"},
+ "location": {"type": "string"},
+ "last-sequence-number": {"type": "integer"},
+ "last-updated-ms": {"type": "integer"},
+ "last-column-id": {"type": "integer"},
+ "schemas": {"type": "array", "items": {}},
Review comment:
Yeah I just did a simple top-level schema as part of this draft, but the
final schema would include much more and be comprehensive of the spec. All
types and required/optional flags. We can also add in regex requirements for
string fields. The spec doesn't have to be a single huge spec either so we
could have a separate jsonschema for PartitionSpec and just reference it in the
larger table metadata jsonschema definition.
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