array tree layouts#8066
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Signed-off-by: Onur Satici <onur@spiraldb.com>
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Signed-off-by: Onur Satici <onur@spiraldb.com>
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Summary
Adds two new layouts, array tree layout and array tree flat layout. Latter writes the array node into a vortex array instead of serialising it into a flatbuffer, and the former collects all these columnar array nodes and creates one segment from them and writes at the end of the file, before the zone maps.
This replaces inlining the array nodes as flatbuffers to the footer