What if you do not want to mention a field i.e. nothing for f ?
Hey,
An alternative to using .Q.dpft would be to manually save down your data using the set keyword and .Q.en as shown below:
q):hdb/2017.07.23/trades/ set .Q.en[:2017.07.23] trades
`:hdb/2017.07.23/trades/
q)
q)
q)meta get `:hdb/2017.07.23/trades
c | t f a
-----| -----
time | p
sym | s g
src | s g
price| f
size | I
You can see that the data was saved with its’ original attributes and did not add a p attribute to a column of the table.
Hope this helps.
Regards,
Scott