vincenzon opened a new issue, #1357:
URL: https://github.com/apache/iceberg-python/issues/1357
### Apache Iceberg version
0.8.0 (latest release)
### Please describe the bug 🐞
A row_filter passed table overwrite throws a parse exception if the column
begins with a underscore. The example below demonstrates the issue. I tried
quoting the column name but that didn't help.
```import pathlib
import pyarrow as pa
import pandas as pd
from pyiceberg.schema import Schema
from pyiceberg.types import StringType, NestedField
from pyiceberg.exceptions import NamespaceAlreadyExistsError
from pyiceberg.catalog.sql import SqlCatalog
catalog_path = "/tmp/iceberg_data"
pathlib.Path(catalog_path).mkdir(exist_ok=True)
catalog = SqlCatalog(
"default",
**{
"uri": f"sqlite:///{catalog_path}/pyiceberg_catalog.db",
"warehouse": f"file://{catalog_path}",
},
)
try:
catalog.create_namespace("default")
except NamespaceAlreadyExistsError:
pass
df = pa.Table.from_pandas(pd.DataFrame(
{
"_X": ['a', 'b', 'c'],
"YY": ['A','A','A'],
}))
schema = Schema(
NestedField(field_id=1, name='_X', field_type=StringType(),
required=False),
NestedField(field_id=2, name='YY', field_type=StringType(),
required=False),
schema_id=0,
identifier_field_ids=[])
table = "default.foo"
try:
catalog.drop_table(table)
except:
pass
tbl = catalog.create_table(
identifier=table,
schema=schema,
)
tbl.append(df)
# These two examples raise ParseException:
tbl.overwrite(df, """ _X == 'a' """)
#tbl.overwrite(df, """ "_X" == 'a' """)
# These two examples are fine:
#tbl.overwrite(df, """ YY == 'A' """)
#tbl.overwrite(df, """ "YY" == 'A' """)
```
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