/filter/byarea

URL: https://<aws.fqdn>/<aws.cluster.name>/gpudb-0/filter/byarea

Calculates which objects from a table are within a named area of interest (NAI/polygon). The operation is synchronous, meaning that a response will not be returned until all the matching objects are fully available. The response payload provides the count of the resulting set. A new resultant set (view) which satisfies the input NAI restriction specification is created with the name input parameter view_name passed in as part of the input.

Input Parameter Description

Name

Type

Description

table_name

string

Name of the table to filter, in [schema_name.]table_name format, using standard name resolution rules. This may be the name of a table or a view (when chaining queries).

view_name

string

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 ''.

x_column_name

string

Name of the column containing the x values to be filtered.

x_vector

array of doubles

List of x coordinates of the vertices of the polygon representing the area to be filtered.

y_column_name

string

Name of the column containing the y values to be filtered.

y_vector

array of doubles

List of y coordinates of the vertices of the polygon representing the area to be filtered.

options

map of string to strings

Optional parameters. The default value is an empty map ( {} ).

Supported Parameters (keys)

Parameter Description

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. The default value is false. The supported values are:

true
false

collection_name

[DEPRECATED--please specify the containing schema for the view as part of input parameter view_name and use /create/schema to create the schema if non-existent] Name of a schema for the newly created view. If the schema provided is non-existent, it will be automatically created.

Output Parameter Description

The GPUdb server embeds the endpoint response inside a standard response structure which contains status information and the actual response to the query. Here is a description of the various fields of the wrapper:

Name

Type

Description

status

String

'OK' or 'ERROR'

message

String

Empty if success or an error message

data_type

String

'filter_by_area_response' or 'none' in case of an error

data

String

Empty string

data_str

JSON or String

This embedded JSON represents the result of the /filter/byarea endpoint:

Name

Type

Description

count

long

The number of records passing the area filter.

info

map of string to strings

Additional information. The default value is an empty map ( {} ).

Possible Parameters (keys)	Parameter Description
qualified_view_name	The fully qualified name of the view (i.e. including the schema)

Empty string in case of an error.