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Fix ValueError: too many values to unpack for col lineage (#11723)

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Mayur Singal 2023-05-24 11:30:44 +05:30 committed by GitHub
parent 7c4e53f0e0
commit c44bff8fd3
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1 changed files with 9 additions and 3 deletions
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12
ingestion/src/metadata/ingestion/lineage/parser.py
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@ -15,7 +15,7 @@ import traceback
from collections import defaultdict
from copy import deepcopy
from logging.config import DictConfigurator
from typing import Any, Dict, List, Optional, Tuple, Union
from typing import Any, Dict, List, Optional, Tuple
import sqlparse
from cached_property import cached_property
@ -118,14 +118,20 @@ class LineageParser:
return self.retrieve_tables(self.parser.target_tables)
@cached_property
def column_lineage(self) -> List[Union[Tuple[Column, Column]]]:
def column_lineage(self) -> List[Tuple[Column, Column]]:
"""
Get a list of tuples of column lineage
"""
if self.parser._dialect == SQLPARSE_DIALECT: # pylint: disable=protected-access
return self.parser.get_column_lineage()
column_lineage = []
for src_column, tgt_column in self.parser.get_column_lineage():
for col_lineage in self.parser.get_column_lineage():
# In case of column level lineage it is possible that we get
# two or more columns as there might be some intermediate columns
# but the source columns will be the first value and
# the target column always will be the last columns
src_column = col_lineage[0]
tgt_column = col_lineage[-1]
src_col = Column(src_column.raw_name)
src_col._parent = src_column._parent # pylint: disable=protected-access
tgt_col = Column(tgt_column.raw_name)