filter_by_table

GPUdb.filter_by_table( table_name = None, view_name = '', column_name = None,
                       source_table_name = None, source_table_column_name =
                       None, options = {} )

Filters objects in one table based on objects in another table. The user must specify matching column types from the two tables (i.e. the target table from which objects will be filtered and the source table based on which the filter will be created); the column names need not be the same. If a input parameter view_name is specified, then the filtered objects will then be put in a newly created view. The operation is synchronous, meaning that GPUdb will not return until all objects are fully available in the result view. The return value contains the count (i.e. the size) of the resulting view.

Input Parameter Description

Name	Type	Description
table_name	str	Name of the table whose data will be filtered. Must be an existing table in GPUdb.
view_name	str	If provided, then this will be the name of the view containing the results. Must not be an already existing collection, table or view. Default value is ''.
column_name	str	Name of the column by whose value the data will be filtered from the table designated by input parameter table_name.
source_table_name	str	Name of the table whose data will be compared against in the table called input parameter table_name. Must be an existing table in GPUdb.
source_table_column_name	str	Name of the column in the input parameter source_table_name whose values will be used as the filter for table input parameter table_name. Must match the type of the input parameter column_name.
options	dict of str	Optional parameters. Default value is an empty dict ( {} ).

Output Parameter Description

Name	Type	Description
count	long	The number of records in input parameter table_name that have input parameter column_name values matching input parameter source_table_column_name values in input parameter source_table_name.