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I have been trying to convert a UNIX timestamp to datetime in Power Query. I am using Direct Query, not Import.
I am very surprised that this is so difficult. I keep getting this error:
This step results in a query that is not supported in DirectQuery mode
Of course I had to type that error in here, as it cannot be copied. Now I have been investigating and have narrowed the problem down to the duration conversion. This is my code, step by step:
let
Source = Snowflake.Databases("XXXXXX.snowflakecomputing.com","WAREHOUSE_NAME"),
DB_NAME_Database = Source{[Name="DB_NAME",Kind="Database"]}[Data],
PUBLIC_Schema = DB_NAME_Database{[Name="PUBLIC",Kind="Schema"]}[Data],
TABLENAME_View = PUBLIC_Schema{[Name="TABLENAME",Kind="View"]}[Data],
UNIX_EPOCH = #datetime(1970, 1, 1, 0, 0, 0),
UnixEpochColumnStep = Table.AddColumn(TABLENAME_View, "unix_epoch", each UNIX_EPOCH),
TimestampToDays = Table.AddColumn(UnixEpochColumnStep, "timestamp_days", each [timestamp]/86400.0, Double.Type),
//ToDurationStep = Table.AddColumn(TimestampToDays, "timestamp_as_duration", each Duration.From([timestamp_days])),
ToDurationStep = Table.AddColumn(TimestampToDays, "timestamp_as_duration", each #duration(0,0,0,[timestamp])),
TimestampToDateStep = Table.AddColumn(ToDurationStep, "timestamp_as_date", each [unix_epoch]),
in
DuplicateStep
Now by separating this into steps, I can see that the error I am getting is caused by either each Duration.From([timestamp_days]) or each #duration(0,0,0,[timestamp]). Both of these cause the error.
Is there a method to converting UNIX timestamp to datetime that does not need Duration and does not trigger this error?
Solved! Go to Solution.
You can try to convert the column from number to duration format in DirectQuery mode by using UTCDateTime and DateTimeZone : Datetime = DateTimeZone(UTCDateTime(1970, 1, 1, 0, 0, [UnixTimestampColumn]), "UTC")
You can try to convert the column from number to duration format in DirectQuery mode by using UTCDateTime and DateTimeZone : Datetime = DateTimeZone(UTCDateTime(1970, 1, 1, 0, 0, [UnixTimestampColumn]), "UTC")
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