pathwaycom/pathway · error · ValueError
The column {column} doesn't belong to the target table
Error message
The column {column} doesn't belong to the target table What it means
Error "The column {column} doesn't belong to the target table" thrown in pathwaycom/pathway.
Source
Thrown at python/pathway/io/_utils.py:745
return s3_connection_settings.create_aws_settings()
def _prepare_s3_connection_engine_settings(
s3_connection_settings: (
AwsS3Settings | MinIOSettings | WasabiS3Settings | DigitalOceanS3Settings | None
),
) -> api.AwsS3Settings | None:
aws_s3_settings = _prepare_s3_connection_settings(s3_connection_settings)
if aws_s3_settings is None:
return None
return aws_s3_settings.settings
def get_column_index(table: Table, column: ColumnReference | None) -> int | None:
if column is None:
return None
if column._table != table:
raise ValueError(f"The column {column} doesn't belong to the target table")
for index, table_column in enumerate(table._columns):
if table_column == column.name:
return index
raise RuntimeError(f"The column {column} is not found in the table {table}")
def init_mode_from_str(init_mode: str) -> api.TableWriterInitMode:
match init_mode:
case "default":
return api.TableWriterInitMode.DEFAULT
case "create_if_not_exists":
return api.TableWriterInitMode.CREATE_IF_NOT_EXISTS
case "replace":
return api.TableWriterInitMode.REPLACE
case _:
raise ValueError(f"Invalid init_mode: {init_mode}")
View on GitHub (pinned to fa2f74a464)
Solutions
- Pass a column reference taken from the target table (e.g. table.column), not from another table.
Example fix
pw.io.write(t, ..., sort_by=t.ts)
When it happens
Trigger: Thrown at python/pathway/io/_utils.py:745 when the library encounters an invalid state.
Common situations: See trigger scenarios.
AI-assisted analysis of pathwaycom/pathway@fa2f74a464 (2026-08-15).
Data as JSON: /api/errors/69b3d3f878da76cd.
Report an issue: GitHub.