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lwhay / asterixdb

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Fractional datetimes with > 3 decimal places #778

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
Although current behavior is ISO 8601 standards compliant and specified in the 
docs, it would be nice if more precision were supported in datetimes. 

datetime("2001-01-01T01:01:01.123")
Works fine, no errors

datetime("2001-01-01T01:01:01.1234")
Error: This can not be an instance of datetime [AlgebricksException]

datetime("2001-01-01T01:01:01.1230")
Error: This can not be an instance of datetime [AlgebricksException]

Note that the last example ends in 0.

(AsterixDB 0.8.5)

It is not uncommon to have datetimes with > millisecond precision. For example, 
.NET (when generating an ISO 8601 compliant datetime string with 
.ToString("o")) by default has 7 digits of fractional seconds.

If this can't be supported, a more descriptive error message would also be 
helpful.

Original issue reported on code.google.com by euf...@gmail.com on 26 May 2014 at 6:24