Sequence functions
Sequence functions are used to process data items with one-dimensional sequences
See also:
- sequence2points - all vertices of each arc/polygon as separate points
- points2sequence - constructs arc/polygon from vertices
- first_point - first point of each sequence
- last_point - last point of each sequence
- split_piped_string - split strings by pipe character
- split_multi_linestring - split multi-linestrings at undefined points