10.53 OPG_APIS.SPARSIFY_GRAPH_CLEANUP

Format

OPG_APIS.SPARSIFY_GRAPH_CLEANUP(
     edge_tab_name IN VARCHAR2,
     wt_out_tab    IN OUT VARCHAR2,
     wt_und_tab    IN OUT VARCHAR2,
     wt_hsh_tab    IN OUT VARCHAR2,
     wt_mch_tab    IN OUT VARCHAR2,
     options       IN VARCHAR2 DEFAULT NULL);

Description

Cleans up after sparsification (edge trimming) for a property graph edge table.

Parameters

edge_tab_name

Name of the property graph edge table (GE$).

wt_out_tab

A working table to hold the output, a sparsified graph.

wt_und_tab

A working table to hold the undirected version of the original graph.

wt_hsh_tab

A working table to hold the min hash values of the graph.

wt_mch_tab

A working table to hold matching count of min hash values.

tbs

A working table to hold the working table data

options

(Reserved for future use.)

Usage Notes

The working tables will be dropped after the operation completes.

Examples

The following example does the preparation work for the edges table of mypg, prints out the working table names, runs sparsification, and then performs cleanup.

SQL> set serveroutput on
DECLARE
  my_lean_pg  varchar2(100) := 'lean_pg';
  wt2 varchar2(100);
  wt3 varchar2(100);
  wt4 varchar2(100);
BEGIN
  opg_apis.sparsify_graph_prep('mypgGE$', my_lean_pg, wt2, wt3, wt4, null);
  dbms_output.put_line('wt2 ' || wt2 || ', wt3 ' || wt3 || ', wt4 '|| wt4);

  opg_apis.sparsify_graph('mypgGE$', 0.5, 1, 4, my_lean_pg, wt2, wt3, wt4, 'SEMTS', null);

  -- Add logic here to consume SVID, DVID in LEAN_PG table
  -- 

  -- cleanup 
  opg_apis.sparsify_graph_cleanup('mypgGE$', my_lean_pg, wt2, wt3, wt4, null);
END;
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