kdb+ and q
Q+A on all things kdb+ database and the q language
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Parallelising .Q.dpft with default compression enabled

.Q.dpft and why to parallelise it .Q.dpft can be split into 4 steps Find the index ordering of the table with iasc Enumerate table against sym file Save down table 1 column at a time, reordering and applying attributes as it goes Set .d file down Sin...