Please check the location of the database in your environment. You can
do it using the Terminal in JupyterLab. Once you have confirmed the
location, make sure you are using the right path to load the database.
You could use the absolute path, or chec...
As a first step you could insert printouts of .Q.w[] in between the
actual operations in the query, even breaking down expressions into
single operator invocations if necessary. Additionally .Q.ts can be used
to figure out the time and space used by ...
According to the docs at Set Attribute | Reference | kdb+ and q
documentation - Kdb+ and q documentation (kx.com) : Setting or unsetting
an attribute other than sorted causes a copy of the object to be made.
Using a C function as a workaround might w...
Can you make sure that the res variable you do the meta on is the same
that you are trying to update? E.g. global vs local variable, or other
queries changing it in the meantime. Or there being a space in the
column name (possible if parsing from CSV...
This has to do with the behavior of the ' operator (which is each is a
wrapper for). If we have p:.[;();:;] , p is a binary function, as it is
a projection with two elided arguments. The ' operator modifies a
function to go elementwise on its argumen...