.net 8.0

[00raq00]

No description provided.

[sshanks-kx]

Re: Demos/FeedDemo/Program.cs

Running

q -p 5001
q).u.upd:{[tbl;row] insert[tbl](row)}
q)mytable:([]time:`timespan$();sym:`symbol$();price:`float$();size:`long$())

get many `type errors. Just running ParallelInsertRows with the q instance changed to add printing of message received i.e.

q).z.ps:{0N!x;value x}

see what's causing the errors (mismatching types for the table updates):

(".u.upd";`mytable;(0D00:00:00.000000000;`SYMBOL;49i;300))
'type

The code should prob have been

          // Assumes a remote schema of mytable:([]time:`timespan$();sym:`symbol$();price:`float$();size:`long$())
          object[] row = new object[]
          {
                    new c.KTimespan(i),
                    "SYMBOL",
                    Convert.ToDouble(i)
                    300L
          };

Though since data is being sent on threads, each thread is interleaving with each other giving different order each time (as expected). Order is the same per thread, but not across threads. e.g. first run, looking at first 5 entries to table when only running parallel inserts:

q)5#mytable
time                 sym    price size
--------------------------------------
0D00:00:00.000000000 SYMBOL 0     300 
0D00:00:00.000000000 SYMBOL 75    300 
0D00:00:00.000000000 SYMBOL 50    300 
0D00:00:00.000000000 SYMBOL 25    300 
0D00:00:00.000000000 SYMBOL 26    300 

next run has different order, as expected due to threading

q)5#mytable
time                 sym    price size
--------------------------------------
0D00:00:00.000000000 SYMBOL 50    300 
0D00:00:00.000000000 SYMBOL 0     300 
0D00:00:00.000000000 SYMBOL 75    300 
0D00:00:00.000000000 SYMBOL 25    300 
0D00:00:00.000000000 SYMBOL 76    300 

Depending on use-case, this may not be desirable & will leave it off the demo as closer to programming paradigm rather than API example.

[00raq00]

@sshanks-kx could you please take a look? :⁠-⁠)

[sshanks-kx]

See comment above regarding parallel inserts. Will not be adding it in for now. Thanks for raising.

[00raq00]

See comment above regarding parallel inserts. Will not be adding it in for now. Thanks for raising.

Oh ok but if I will push PR with .net 8 only?