Github user njayaram2 commented on a diff in the pull request:
https://github.com/apache/incubator-madlib/pull/113#discussion_r111604232
--- Diff: src/ports/postgres/modules/graph/sssp.py_in ---
@@ -85,47 +130,91 @@ def graph_sssp(schema_madlib, vertex_table, vertex_id,
edge_table,
local_distribution = m4_ifdef(<!__POSTGRESQL__!>, <!''!>,
<!"DISTRIBUTED BY (id)"!>)
- validate_sssp(vertex_table, vertex_id, edge_table,
- edge_params, source_vertex, out_table)
+ is_hawq = m4_ifdef(<!__HAWQ__!>, <!True!>, <!False!>)
+ _validate_sssp(vertex_table, vertex_id, edge_table,
+ edge_params, source_vertex, out_table, glist)
plpy.execute(" DROP TABLE IF EXISTS {0},{1},{2}".format(
message,oldupdate,newupdate))
+ # Initialize grouping related variables
+ comma_grp = ""
+ comma_grp_e = ""
+ comma_grp_m = ""
+ grp_comma = ""
+ checkg_oo = ""
+ checkg_eo = ""
+ checkg_ex = ""
+ checkg_om = ""
+ group_by = ""
+
+ if grouping_cols is not None:
+ comma_grp = " , " + grouping_cols
+ group_by = " , " + _grp_from_table(edge_table,glist)
+ comma_grp_e = " , " + _grp_from_table(edge_table,glist)
+ comma_grp_m = " , " + _grp_from_table("message",glist)
+ grp_comma = grouping_cols + " , "
+
+ checkg_oo_sub =
_check_groups(out_table,"oldupdate",glist)
+ checkg_oo = " AND " + checkg_oo_sub
+ checkg_eo = " AND " +
_check_groups(edge_table,"oldupdate",glist)
+ checkg_ex = " AND " +
_check_groups(edge_table,"x",glist)
+ checkg_om = " AND " +
_check_groups("out_table","message",glist)
+
+ w_type = get_expr_type(weight,edge_table).lower()
+ init_w = INT_MAX
+ if w_type in ['double precision','float8']:
+ init_w = INFINITY
+
# We keep a table of every vertex, the minimum cost to that
destination
# seen so far and the parent to this vertex in the associated
shortest
# path. This table will be updated throughtout the execution.
plpy.execute(
--- End diff --
throughtout -> throughout
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