Custom Query (2765 matches)

For example: TOPSAR coverage has time axis with this extent: ["2022-10-06T12:00:00.000Z", "2022-10-10T12:00:00.000Z"] and it also has 3 pyramid levels 2, 4, 8.

This WMS GetMap request has a time slice which is out of the time's extent, and it should throw proper exception instead of trying to generate a rasql query:

http://localhost:8080/rasdaman/ows?service=WMS&version=1.3.0&request=GetMap&layers=TOPSAR&bbox=-42.54421429899902,-65.61416625976562,-29.171667098999023,-55.18390145976562&time=2022-11-07T11:00:00.000Z&width=800&height=600&crs=EPSG:4326&format=image/png&transparent=true&styles=

During a WCPS query.

I was attempting to download a 3D coverage, like so:

for $c in ( coverage_name )
return encode( $c, "image/tiff" )

And got the following XML error:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ows:ExceptionReport version="2.0.1"
    xsi:schemaLocation="http://www.opengis.net/ows/2.0 http://schemas.opengis.net/ows/2.0/owsExceptionReport.xsd"
    xmlns:ows="http://www.opengis.net/ows/2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xlink="http://www.w3.org/1999/xlink">
    <ows:Exception exceptionCode="RasdamanRequestFailed">
        <ows:ExceptionText>Execution error 381 in line 1, column 8, near token encode: Error in convertor of the selected data exchange format.</ows:ExceptionText>
    </ows:Exception>
    <ows:Exception exceptionCode="RasdamanRequestFailed">
        <ows:ExceptionText>Failed internal rasql query: SELECT encode(c, "image/tiff" , "{\"geoReference\":{\"crs\":\"EPSG:4326\",\"bbox\":{\"xmin\":-63.151668548583984,\"ymin\":-35.91914992988281,\"xmax\":-62.415750948583984,\"ymax\":-35.02583312988281}},\"metadata\":{\"Title\":\"This is the test coverage\"},\"nodata\":[-0.999]}")   FROM single AS c </ows:ExceptionText>
    </ows:Exception>
</ows:ExceptionReport>

which was not so helpful. But looking at the logs I saw:

/opt/rasdaman/log/rasserver.c9826559-15a8-46a2-8383-a72e38413f55.015212.log <==
[INFO] - 2023-08-14 16:18:55,047: Request: 'SELECT encode(c, "image/tiff" , "{\"geoReference\":{\"crs\":\"EPSG:4326\",\"bbox\":{\"xmin\":-63.151668548583984,\"ymin\":-35.91914992988281,\"xmax\":-62.415750948583984,\"ymax\":-35.02583312988281}},\"metadata\":{\"Title\":\"This is the test coverage\"},\"nodata\":[-0.999]}")   FROM single AS c'... parsing... checking semantics... evaluating... [ERROR] - 2023-08-14 16:18:55,108, qlparser/qtconversion.cc:290: Format conversion failed: Format conversion failed: cannot encode 3D array with the GDAL library, only 2D is supported
rasdaman error 381: Execution error 381 in line 1, column 8, near token encode: Error in convertor of the selected data exchange format.

Where this message: Format conversion failed: Format conversion failed: cannot encode 3D array with the GDAL library, only 2D is supported, would have been much more helpful from the client side.

rasdaman should support the atan2 function (and allow alias arctan2 for it).

Properties:

• two scalar or array parameters, of same base type, which must be float or double (so if someone invokes with char it throws an error)
• result is same type as the inputs (float or double)
• uses ​std::atan2 for implementation

One can follow (approximately) the implementation of the mod function for example, as a guide on how to implement atan2.

Start from the lexer lex.ll and parser oql.yy, then add the implementation in qtbinaryinduce.hh/cc after QtMod. Also add tests in systemtest/00-select, and document ​here.