kdb+ and q
Q+A on all things kdb+ database and the q language
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type promotions in table

kt1:([] c1:10 1b; c2:`a`b) Howcome 1b which is boolean got type promoted to int. I thought lists did not involve type promotions.

dictionary defn from q mortals

If enlist function returns a list from its arg . Then why is the type of ret 0h ret:enlist 1 Similarly, type of d is 0h also. d:enlist 1! enlist 2

multiple questions

Hi, I am self revising kdb/q and hence asking questions which might help someone down the line. I hope thats ok.


Why does u $ v lead to a length error ? Please note u is without a back tick