Since the update operation can’t work yet, so I try to use the stream insert according to your example (here is the link: https://github.com/mapd/mapd-core/blob/master/SampleCode/StreamInsert.cpp).
But it seems that the load_table() method doesn’t support the LINESTRING structure. Here is the error message:
Actually the table test_odlines I used only have two columns: lineID, mapd_geo, but I know when I insert the LINESTRING data, system would automatically create another three columns: rowid, mapd_geo_coords, mapd_geo_bounds.
Therefore, when I use load_table() method, system asks me to provide another three columns’ data (rowid, coords, bounds), but I can’t, I don’t know how to calculate them, especially the coords.