Converting array of string type to datetime

[Mich Talebzadeh]

How can I convert the following from String to datetime

scala> df.map(x => (x.getString(1), ChangeDate(x.getString(1)))).take(1)
res60: Array[(String, String)] = Array((10/02/2014,2014-02-10))

Please note that the custom UDF ChangeDate() has revered the string value
from "dd/MM/yyyy" to "yyyy-MM-dd"

Now I need to convert ChangeDate(x.getString(1)) from String to datetime?

scala> df.map(x => (x.getString(1),
ChangeDate(x.getString(1)).toDate)).take(1)
<console>:25: error: value toDate is not a member of String
              df.map(x => (x.getString(1),
ChangeDate(x.getString(1)).toDate)).take(1)

Or

scala> df.map(x => (x.getString(1),
ChangeDate(x.getString(1)).cast("date"))).take(1)
<console>:25: error: value cast is not a member of String
              df.map(x => (x.getString(1),
ChangeDate(x.getString(1)).cast("date"))).take(1)


Thanks,


Dr Mich Talebzadeh



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