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add postgres grains #262

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Apr 5, 2016
Merged

add postgres grains #262

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8 changes: 8 additions & 0 deletions caravel/models.py
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Original file line number Diff line number Diff line change
Expand Up @@ -337,6 +337,14 @@ def grains(self):
Grain('week', 'DATE_SUB({col}, INTERVAL DAYOFWEEK({col}) - 1 DAY)'),
Grain('month', 'DATE_SUB({col}, INTERVAL DAYOFMONTH({col}) - 1 DAY)'),
),
'postgresql': (
Grain("Time Column", "{col}"),
Grain("hour", "DATE_TRUNC('hour', {col})"),
Grain("day", "DATE_TRUNC('day', {col})"),
Grain("week", "DATE_TRUNC('week', {col})"),
Grain("month", "DATE_TRUNC('month', {col})"),
Grain("year", "DATE_TRUNC('year', {col})"),
),
}
for db_type, grains in db_time_grains.items():
if self.sqlalchemy_uri.startswith(db_type):
Expand Down