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get_array_type_columns fails for index without records #38

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get_array_type_columns fails for index without records#38
#39
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@Alexander-N

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@Alexander-N
Alexander-N
opened on Dec 16, 2020

For an index (table) which contains no records the following code will break with IndexError which is not catched:

elasticsearch-dbapi/es/elastic/api.py

Lines 168 to 173 in 646606f

try:
_source = resp["hits"]["hits"][0]["_source"]
except KeyError as e:
raise exceptions.DataError(
f"Error inferring array type columns {self.url}: {e}"
)

This means that if there exists any empty index, then the IndexError will be thrown when calling

metadata.reflect(bind=engine)

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