Enforce schema during conversion from binary to hex

README.md

@@ -58,7 +58,7 @@ In binary form, the raw bytes are stored in most fields:
 ```python
 datasets.Features({
     "chain_id": datasets.features.Value(dtype='uint64'),
-    "block_number": datasets.features.Value(dtype='uint32'),
+    "block_number": datasets.features.Value(dtype='uint64'),
     'block_hash': datasets.features.Value(dtype='large_binary'),
     'transaction_hash': datasets.features.Value(dtype='large_binary'),
     'deployer_address': datasets.features.Value(dtype='large_binary'),

hexify.py

@@ -16,7 +16,7 @@ OUTPUT_DATASET_PATH = 'hex/ethereum/train/'
 
 INPUT_SCHEMA = pa.schema(fields=[
     pl.field('chain_id', pa.uint64()),
-    pl.field('block_number', pa.uint32()),
+    pl.field('block_number', pa.uint64()),
     pl.field('block_hash', pa.large_binary()),
     pl.field('transaction_hash', pa.large_binary()),
     pl.field('deployer_address', pa.large_binary()),
@@ -84,7 +84,7 @@ def process_dataset(dataset: pq.ParquetDataset, output: str=OUTPUT_DATASET_PATH,
     for __f in dataset.fragments:
         __path = os.path.join(output, os.path.basename(__f.path))
         # encode each record
-        __table = pl.Table.from_pylist(process_table(table=__f.to_table()))
+        __table = pl.Table.from_pylist(process_table(table=__f.to_table()), schema=schema)
         # save
         pq.write_table(table=__table, where=__path)
         # log