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Vertica: prevent overwriting row data when duplicated column names exist #4201

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merged 3 commits into from
Oct 2, 2019
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Vertica: prevent overwriting row data when duplicated column names exist #4201

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7175832
Vertica: prevent overwriting row data when duplicated column names exist
rui-sfds Sep 30, 2019
8a4a503
remove enumeration
rui-sfds Oct 2, 2019
7137e8f
Merge branch 'master' into fix-vertica-column-names
arikfr Oct 2, 2019
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14 changes: 5 additions & 9 deletions redash/query_runner/vertica.py
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Original file line number Diff line number Diff line change
Expand Up @@ -126,16 +126,12 @@ def run_query(self, query, user):
logger.debug("Vertica running query: %s", query)
cursor.execute(query)

# TODO - very similar to pg.py
if cursor.description is not None:
columns_data = [(i[0], i[1]) for i in cursor.description]

# bug -- same name columns will always be assigned single last value
# corrected with fetch_columns in pull request https://github.com/getredash/redash/pull/4201
rows = [dict(zip((c[0] for c in columns_data), row)) for row in cursor.fetchall()]
columns = [{'name': col[0],
'friendly_name': col[0],
'type': types_map.get(col[1], None)} for col in columns_data]
columns_data = [(i[0], types_map.get(i[1], None)) for i in cursor.description]

columns = self.fetch_columns(column_data)
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Hi, I stumbled upon this commit while rebasing my work on master.
Tell me if I'm missing something but it looks like column_data is not defined anywhere. Shouldn't it be columns_data?

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😳 of course you're right.

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#4210

rows = [dict(zip(([c['name'] for c in columns]), r))
for r in cursor.fetchall()]

data = {'columns': columns, 'rows': rows}
json_data = json_dumps(data)
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