mobilitydb_datagen

pig build pkg mobilitydb;		# build rpm

pig repo add pgsql -u   # add both repo and update cache

pig install mobilitydb;		# install via package name, for the active PG version
pig install mobilitydb_datagen;		# install by extension name, for the current active PG version

pig install mobilitydb_datagen -v 18;   # install for PG 18
pig install mobilitydb_datagen -v 17;   # install for PG 17
pig install mobilitydb_datagen -v 16;   # install for PG 16
pig install mobilitydb_datagen -v 15;   # install for PG 15
pig install mobilitydb_datagen -v 14;   # install for PG 14

CREATE EXTENSION mobilitydb_datagen CASCADE; -- requires mobilitydb

-- After the main MobilityDB extension is loaded:
CREATE EXTENSION mobilitydb_datagen;

-- A random temporal float sequence.
SELECT random_tfloat_seq(
    -100.0, 100.0,                                  -- value bounds
    '2025-06-01 00:00+00', '2025-06-02 00:00+00',  -- time bounds
    10.0,                                           -- max value delta
    10,                                             -- max minutes between instants
    5, 10                                           -- min/max instants
);

-- Step interpolation instead of the default linear interpolation.
SELECT random_tfloat_seq(
    -100.0, 100.0,
    '2025-06-01 00:00+00', '2025-06-02 00:00+00',
    10.0, 10, 5, 10,
    false
);

-- A random temporal geometry point sequence.
SELECT asEWKT(
    random_tgeompoint_contseq(
        2.20, 2.50, 48.80, 48.95,                  -- x/y bounds
        '2025-06-01 08:00+00', '2025-06-01 18:00+00',
        0.02, 5, 20, 40,                           -- max delta, max minutes, min/max instants
        srid => 4326
    )
);

CREATE TABLE trip_samples AS
SELECT
    vehicle_id,
    random_tgeompoint_contseq(
        2.20, 2.50, 48.80, 48.95,
        '2025-06-01 08:00+00', '2025-06-01 18:00+00',
        0.02, 5, 20, 40,
        srid => 4326
    ) AS trip
FROM generate_series(1, 1000) AS vehicle_id;