What are .Q.M and .Q.vt?

as title

.Q.vt is related to http://code.kx.com/wiki/DotQ/DotQDotvp

It gives the dates of missing partitions

q).Q.bv

q)

q).Q.vp

trade| +datesymtimepricesizebidasksource!(date$();sym$();time$();`f..

q)

q).Q.vt

trade| 2011.08.13

q)

Not sure what .Q.M is supposed to represent. Seems to be hardcoded to 0W in q.k and used within .Q.dsftg

On Sunday, October 4, 2015 at 8:21:51 PM UTC-4, TerryLynch wrote:

Not sure what .Q.M is supposed to represent. Seems to be hardcoded to 0W in q.k and used within .Q.dsftg

M is documented at <http://code.kx.com/wiki/DotQ/DotQDotdsftg\>.  If set to a number less than 1e6, it determines the number of rows processed by dsftg at a time.

ty