Add function to export and import geometry in TWKB encoding

[ebocher]

Check the Tiny Well-known Binary specification

https://github.com/TWKB/Specification/blob/master/twkb.md

[ebocher]

https://github.com/locationtech/jts/issues/246

[ebocher]

Seems under the pipe https://github.com/locationtech/jts/pull/452

[katzyn]

H2 does not use JTS for the GEOMETRY data type, so it doesn't matter what is supported by JTS and what is not.

I thought about TWKB too, but it doesn't support SRID, it is designed to store decimal numbers (WKB uses IEEE 754 binary double precision values, just like double in Java), so encoding of double values with fractional part may be too long, and encoding and decoding of TWKB is quite expensive, it may actually reduce overall performance.

On the other hand, H2GIS can provide functions to export and import geometries in that format.

[ebocher]

You are right. I have updated the title of the issue.

[ebocher]

Available with JTS 1.19.0