Skip to content

Read a raster derived by arithmetic along a trip on the typed Flink surface #82

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
estebanzimanyi merged 1 commit into from
Oct 15, 2026
Merged

Read a raster derived by arithmetic along a trip on the typed Flink surface #82

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
23 changes: 23 additions & 0 deletions binding/src/test/java/org/mobilitydb/flink/sql/GeneratedSqlSurfaceTest.java
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -477,4 +477,27 @@ void aValueOfAnySizeCrossesTheSerializer() throws Exception {
assertEquals(v, back);
assertEquals(20000, GeneratedFunctions.temporal_num_instants(back.decode()));
}

@Test
void aRasterDerivedByArithmeticIsReadAlongATrip() throws Exception {
// A 3x3 32BF depth raster in SRID 4326 holding 10, 20, 30 / 40, 50, 60 / 70, 80, 90,
// as PostGIS's ST_AsHexWKB writes it.
String depth = "rasterFromHexWKB('0100000100000000000000F03F000000000000F0BF0000000000000000"
+ "000000000000084000000000000000000000000000000000E6100000030003000A000000000000204100"
+ "00A0410000F04100002042000048420000704200008C420000A0420000B442')";
String trip = "tgeompointFromText('SRID=4326;[POINT(0.5 2.5)@2001-01-01, "
+ "POINT(2.5 2.5)@2001-01-02, POINT(0.5 0.5)@2001-01-03]')";
// The clearance of a vessel of draught 8.5, as MobilityDB answers rasterValue(trip,
// depth - 8.5) in its raster regression test.
assertEquals("Interp=Step;[1.5@2001-01-01 00:00:00+00, 11.5@2001-01-01 06:00:00+00, "
+ "21.5@2001-01-01 18:00:00+00, 41.5@2001-01-02 06:00:00+00, "
+ "61.5@2001-01-02 18:00:00+00, 61.5@2001-01-03 00:00:00+00]",
scalar("SELECT asText(rasterValue(" + trip + ", rasterSub(" + depth
+ ", CAST(8.5 AS DOUBLE))))"));
String read = (String) scalar("SELECT asText(rasterValue(" + trip + ", " + depth + "))");
assertEquals(read, scalar("SELECT asText(rasterValue(" + trip + ", rasterDiv(rasterAdd("
+ depth + ", " + depth + "), CAST(2.0 AS DOUBLE))))"));
assertEquals(read, scalar("SELECT asText(rasterValue(" + trip + ", rasterDiv(rasterMul("
+ depth + ", " + depth + "), " + depth + ")))"));
}
}
Loading