TRK_EndTimestamp

TRK_EndTimestamp takes a track column and returns a datetime column that represents the last instant of each input track.

Tracks are linestrings that represent the change in an entity's location over time. Each vertex in the linestring has a timestamp (stored as the M-value) and the vertices are ordered sequentially.

For more information on using tracks in GeoAnalytics for Microsoft Fabric, see the core concept topic on tracks.

FunctionSyntax
Pythonend_timestamp(track)
SQLTRK_EndTimestamp(track)
ScalaendTimestamp(track)

For more details, go to the GeoAnalytics for Microsoft Fabric API reference for end_timestamp.

Examples

PythonPythonSQLScala
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from geoanalytics_fabric.tracks import functions as TRK
from geoanalytics_fabric.sql import functions as ST

data = [
    ("LINESTRING M (-117.27 34.05 1633455010, -117.22 33.91 1633456062, -116.96 33.64 1633457132)",),
    ("LINESTRING M (-116.89 33.96 1633575895, -116.71 34.01 1633576982, -116.66 34.08 1633577061)",),
    ("LINESTRING M (-116.24 33.88 1633575234, -116.33 34.02 1633576336)",)
]

df = spark.createDataFrame(data, ["wkt",]) \
          .withColumn("track", ST.line_from_text("wkt", srid=4326))

df.select(TRK.end_timestamp("track").alias("end_timestamp")).show()
Result
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+-------------------+
|      end_timestamp|
+-------------------+
|2021-10-05 11:05:32|
|2021-10-06 20:24:21|
|2021-10-06 20:12:16|
+-------------------+

Version table

ReleaseNotes

1.0.0-beta

Python, SQL, and Scala functions introduced

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