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fix(databend): databend time grain expression (#26378)

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Jeremy 2023-12-29 20:00:05 +08:00 committed by GitHub
parent f78f33d9aa
commit 3a0391bbb9
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1 changed files with 14 additions and 11 deletions
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25
superset/db_engine_specs/databend.py
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@ -18,6 +18,7 @@ from sqlalchemy import types
from sqlalchemy.engine.url import URL
from urllib3.exceptions import NewConnectionError
from superset.constants import TimeGrain
from superset.databases.utils import make_url_safe
from superset.db_engine_specs.base import (
BaseEngineSpec,
@ -45,17 +46,17 @@ class DatabendBaseEngineSpec(BaseEngineSpec):
_time_grain_expressions = {
None: "{col}",
"PT1M": "to_start_of_minute(TO_DATETIME({col}))",
"PT5M": "to_start_of_five_minutes(TO_DATETIME({col}))",
"PT10M": "to_start_of_ten_minutes(TO_DATETIME({col}))",
"PT15M": "to_start_of_fifteen_minutes(TO_DATETIME({col}))",
"PT30M": "TO_DATETIME(intDiv(toUInt32(TO_DATETIME({col})), 1800)*1800)",
"PT1H": "to_start_of_hour(TO_DATETIME({col}))",
"P1D": "to_start_of_day(TO_DATETIME({col}))",
"P1W": "to_monday(TO_DATETIME({col}))",
"P1M": "to_start_of_month(TO_DATETIME({col}))",
"P3M": "to_start_of_quarter(TO_DATETIME({col}))",
"P1Y": "to_start_of_year(TO_DATETIME({col}))",
TimeGrain.SECOND: "DATE_TRUNC('SECOND', {col})",
TimeGrain.MINUTE: "to_start_of_minute(TO_DATETIME({col}))",
TimeGrain.FIVE_MINUTES: "to_start_of_five_minutes(TO_DATETIME({col}))",
TimeGrain.TEN_MINUTES: "to_start_of_ten_minutes(TO_DATETIME({col}))",
TimeGrain.FIFTEEN_MINUTES: "to_start_of_fifteen_minutes(TO_DATETIME({col}))",
TimeGrain.HOUR: "to_start_of_hour(TO_DATETIME({col}))",
TimeGrain.DAY: "to_start_of_day(TO_DATETIME({col}))",
TimeGrain.WEEK: "to_monday(TO_DATETIME({col}))",
TimeGrain.MONTH: "to_start_of_month(TO_DATETIME({col}))",
TimeGrain.QUARTER: "to_start_of_quarter(TO_DATETIME({col}))",
TimeGrain.YEAR: "to_start_of_year(TO_DATETIME({col}))",
}
column_type_mappings = (
@ -133,6 +134,8 @@ class DatabendBaseEngineSpec(BaseEngineSpec):
if isinstance(sqla_type, types.Date):
return f"to_date('{dttm.date().isoformat()}')"
if isinstance(sqla_type, types.TIMESTAMP):
return f"""TO_TIMESTAMP('{dttm.isoformat(timespec="microseconds")}')"""
if isinstance(sqla_type, types.DateTime):
return f"""to_dateTime('{dttm.isoformat(sep=" ", timespec="seconds")}')"""
return None