/filter

URL: http://<db.host>:<db.port>/filter

Filters data based on the specified expression. The results are stored in a result set with the given input parameter view_name.

For details see Expressions.

The response message contains the number of points for which the expression evaluated to be true, which is equivalent to the size of the result view.

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 ''.

expression

string

The select expression to filter the specified table. For details see Expressions.

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 is non-existent, it will be automatically created.
view_id	view this filtered-view is part of. The default value is ''.
ttl	Sets the TTL of the view specified in input parameter view_name.

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_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 endpoint:

Name

Type

Description

count

long

The number of records that matched the given select expression.

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.