superset/db_engine_specs/ibmi.py
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from .db2 import Db2EngineSpec
class IBMiEngineSpec(Db2EngineSpec):
engine = "ibmi"
engine_name = "IBM Db2 for i"
max_column_name_length = 128
@classmethod
def epoch_to_dttm(cls) -> str:
return "(DAYS({col}) - DAYS('1970-01-01')) * 86400 + MIDNIGHT_SECONDS({col})"