Custom Query (2765 matches)

Based on rasql polygonize() ​doc, WCPS should support the syntaxes below:

polygonize(coverageExpr, targetFormat)
polygonize(coverageExpr, targetFormat, connectedness)

The behavior of petascope community should be like below:

• If authentication_type = basic_header
  • If rasdaman_user is set → use this one for unauthenticated
  • If rasdaman_user is not set → require credentials and throw error if not exist
• If authentication_type = empty
  • If rasdaman_user is set → use this one
  • If rasdaman_user is not set → petascope will not start as it doesn't know the user to run WCS/WCPS requests

Because this temp folder /tmp/rasdaman/polygonize/ does not exist, then, the polygonize query doesn't work:

 [INFO] - 2023-12-10 20:29:50,395: Request: 'select polygonize(c, "ESRI Shapefile") from test_mr as c'... parsing... checking semantics... evaluating... [ERROR] - 2023-12-10 20:29:50,395, qlparser/qtpolygonize.cc:477: 

Error creating directory of base filename /tmp/rasdaman/polygonize/
no explanation text available for error code 723

Also update the queries example in ​https://doc.rasdaman.org/04_ql-guide.html#polygonize-operation

to have this format:

rasql -q 'select ...' --out file

otherwise, nobody knows how to get the output files from the query.