ST_CreateDuration

ST_CreateDuration takes an integer and a temporal unit and returns a duration tuple. The temporal unit can be milliseconds, seconds, minutes, hours, or days. The value must be a short or long integer. Both the value and unit can be specified as either literal values or columns.

The duration tuple can be used as a track offset to to query and split tracks.

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.

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

Examples

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from geoanalytics_fabric.sql import functions as ST

data = [(55, "seconds"),(7, "minutes"),(82, "seconds")]

spark.createDataFrame(data, ["value", "units"]) \
     .select(ST.create_duration("value", "units").alias("create_duration")) \
     .show(truncate=False)

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+---------------+
|create_duration|
+---------------+
|{55, second}   |
|{7, minute}    |
|{82, second}   |
+---------------+

Version table

Related topics

• ST_CreateDistance
• TRK_Aggr_CreateTrack
• TRK_Query
• TRK_After
• TRK_Before
• TRK_SplitByDuration