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ISSUE-17045: Modified to create column linage even when upstream columns and data source columns are one-to-many (#17112)

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Co-authored-by: Pere Miquel Brull <peremiquelbrull@gmail.com>
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kwgdaig 2024-08-22 16:07:05 +09:00 committed by GitHub
parent 3d8d8566cc
commit 43a244fbf1
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1 changed files with 10 additions and 7 deletions
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17
ingestion/src/metadata/ingestion/source/dashboard/tableau/metadata.py
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@ -313,17 +313,18 @@ class TableauSource(DashboardServiceSource):
@staticmethod @staticmethod
def _get_data_model_column_fqn( def _get_data_model_column_fqn(
data_model_entity: DashboardDataModel, column: str data_model_entity: DashboardDataModel, column: str
) -> Optional[str]: ) -> Optional[List[str]]:
""" """
Get fqn of column if exist in table entity Get fqn of column if exist in table entity
""" """
if not data_model_entity: if not data_model_entity:
return None return None
columns = []
for tbl_column in data_model_entity.columns: for tbl_column in data_model_entity.columns:
for child_column in tbl_column.children or []: for child_column in tbl_column.children or []:
if column.lower() == child_column.name.root.lower(): if column.lower() == child_column.name.root.lower():
return child_column.fullyQualifiedName.root columns.append(child_column.fullyQualifiedName.root)
return None return columns
def _get_column_lineage( # pylint: disable=arguments-differ def _get_column_lineage( # pylint: disable=arguments-differ
self, self,
@ -342,13 +343,15 @@ class TableauSource(DashboardServiceSource):
from_column = get_column_fqn( from_column = get_column_fqn(
table_entity=table_entity, column=column.name table_entity=table_entity, column=column.name
) )
to_column = self._get_data_model_column_fqn( to_columns = self._get_data_model_column_fqn(
data_model_entity=data_model_entity, data_model_entity=data_model_entity,
column=column.id, column=column.id,
) )
column_lineage.append( for to_column in to_columns:
ColumnLineage(fromColumns=[from_column], toColumn=to_column) column_lineage.append(
) ColumnLineage(fromColumns=[from_column], toColumn=to_column)
)
return column_lineage
except Exception as exc: except Exception as exc:
logger.debug(f"Error to get column lineage: {exc}") logger.debug(f"Error to get column lineage: {exc}")
logger.debug(traceback.format_exc()) logger.debug(traceback.format_exc())