filter\_by\_series(table\_name=None, view\_name='', track\_id=None, target\_track\_ids=None, options={"{"}{"}"})\[source]

Filters objects matching all points of the given track (works only on track type data). It allows users to specify a particular track to find all other points in the table that fall within specified ranges (spatial and temporal) of all points of the given track. Additionally, the user can specify another track to see if the two intersect (or go close to each other within the specified ranges). The user also has the flexibility of using different metrics for the spatial distance calculation: Euclidean (flat geometry) or Great Circle (spherical geometry to approximate the Earth’s surface distances). The filtered points are stored in a newly created result set. The return value of the function is the number of points in the resultant set (view).

This operation is synchronous, meaning that a response will not be returned until all the objects are fully available.

Parameters

table\_name (str) –

Name of the table on which the filter by track operation will be performed, in \[schema\_name.]table\_name format, using standard name resolution rules. Must be a currently existing table with a track present.

view\_name (str) –

If provided, then this will be the name of the view containing the results, in \[schema\_name.]view\_name format, using standard name resolution rules and meeting table naming criteria. Must not be an already existing table or view. The default value is ‘’.

track\_id (str) –

The ID of the track which will act as the filtering points. Must be an existing track within the given table.

target\_track\_ids (list of str) –

Up to one track ID to intersect with the “filter” track. If any provided, it must be an valid track ID within the given set. The user can provide a single element (which will be automatically promoted to a list internally) or a list.

options (dict of str to str) –

Optional parameters. Allowed keys are:

create\_temp\_table – If true, a unique temporary table name will be generated in the sys\_temp schema and used in place of input parameter view\_name. This is always allowed even if the caller does not have permission to create tables. The generated name is returned in qualified\_view\_name. Allowed values are:
- true
- false
The default value is ‘false’.
collection\_name – \[DEPRECATED–please specify the containing schema for the view as part of input parameter view\_name and use GPUdb.create\_schema() to create the schema if non-existent] Name of a schema for the newly created view. If the schema is non-existent, it will be automatically created.
spatial\_radius – A positive number passed as a string representing the radius of the search area centered around each track point’s geospatial coordinates. The value is interpreted in meters. Required parameter. The minimum allowed value is ‘0’.
time\_radius – A positive number passed as a string representing the maximum allowable time difference between the timestamps of a filtered object and the given track’s points. The value is interpreted in seconds. Required parameter. The minimum allowed value is ‘0’.
spatial\_distance\_metric – A string representing the coordinate system to use for the spatial search criteria. Acceptable values are ‘euclidean’ and ‘great\_circle’. Optional parameter; default is ‘euclidean’. Allowed values are:
- euclidean
- great\_circle

The default value is an empty dict ( {"{"}{"}"} ).

Returns

A dict with the following entries–

count (long) –

The number of records passing the series filter.

info (dict of str to str) –

Additional information. Allowed keys are:

qualified\_view\_name – The fully qualified name of the view (i.e. including the schema).

The default value is an empty dict ( {"{"}{"}"} ).