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/*
PGR-GNU*****************************************************************
File: primDD.sql
Copyright (c) 2018 Vicky Vergara
Mail: vicky at georepublic dot de
------
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
********************************************************************PGR-GNU
*/
--
------------
--
pgr_primDD
--
------------
--
SINGLE VERTEX
--
v3.0
CREATE
FUNCTION
pgr_primDD
(
TEXT
,
--
Edge sql
BIGINT
,
--
root vertex
NUMERIC
,
--
distance
OUT seq
BIGINT
,
OUT depth
BIGINT
,
OUT start_vid
BIGINT
,
OUT node
BIGINT
,
OUT edge
BIGINT
,
OUT cost FLOAT,
OUT agg_cost FLOAT)
RETURNS SETOF RECORD
AS
$BODY$
BEGIN
IF $
3
<
0
THEN
RAISE EXCEPTION
'
Negative value found on
'
'
distance
'
'
'
USING HINT
=
format(
'
Value found: %s
'
, $
3
);
END IF;
RETURN QUERY
SELECT
*
FROM
_pgr_prim(_pgr_get_statement($
1
), ARRAY[$
2
]::
BIGINT
[],
'
DD
'
,
-
1
, $
3
::FLOAT);
END;
$BODY$
LANGUAGE plpgsql VOLATILE STRICT;
--
v3.0
CREATE
FUNCTION
pgr_primDD
(
TEXT
,
--
Edge sql
BIGINT
,
--
root vertex
FLOAT,
--
distance
OUT seq
BIGINT
,
OUT depth
BIGINT
,
OUT start_vid
BIGINT
,
OUT node
BIGINT
,
OUT edge
BIGINT
,
OUT cost FLOAT,
OUT agg_cost FLOAT)
RETURNS SETOF RECORD
AS
$BODY$
BEGIN
IF $
3
<
0
THEN
RAISE EXCEPTION
'
Negative value found on
'
'
distance
'
'
'
USING HINT
=
format(
'
Value found: %s
'
, $
3
);
END IF;
RETURN QUERY
SELECT
*
FROM
_pgr_prim(_pgr_get_statement($
1
), ARRAY[$
2
]::
BIGINT
[],
'
DD
'
,
-
1
, $
3
::FLOAT);
END;
$BODY$
LANGUAGE plpgsql VOLATILE STRICT;
--
MULTIPLE VERTICES
--
v3.0
CREATE
FUNCTION
pgr_primDD
(
TEXT
,
--
Edge sql
ANYARRAY,
--
root vertex
NUMERIC
,
--
distance
OUT seq
BIGINT
,
OUT depth
BIGINT
,
OUT start_vid
BIGINT
,
OUT node
BIGINT
,
OUT edge
BIGINT
,
OUT cost FLOAT,
OUT agg_cost FLOAT)
RETURNS SETOF RECORD
AS
$BODY$
BEGIN
IF $
3
<
0
THEN
RAISE EXCEPTION
'
Negative value found on
'
'
distance
'
'
'
USING HINT
=
format(
'
Value found: %s
'
, $
3
);
END IF;
RETURN QUERY
SELECT
*
FROM
_pgr_prim(_pgr_get_statement($
1
), $
2
,
'
DD
'
,
-
1
, $
3
);
END;
$BODY$
LANGUAGE plpgsql VOLATILE STRICT;
--
v3.0
CREATE
FUNCTION
pgr_primDD
(
TEXT
,
--
Edge sql
ANYARRAY,
--
root vertex
FLOAT,
--
distance
OUT seq
BIGINT
,
OUT depth
BIGINT
,
OUT start_vid
BIGINT
,
OUT node
BIGINT
,
OUT edge
BIGINT
,
OUT cost FLOAT,
OUT agg_cost FLOAT)
RETURNS SETOF RECORD
AS
$BODY$
BEGIN
IF $
3
<
0
THEN
RAISE EXCEPTION
'
Negative value found on
'
'
distance
'
'
'
USING HINT
=
format(
'
Value found: %s
'
, $
3
);
END IF;
RETURN QUERY
SELECT
*
FROM
_pgr_prim(_pgr_get_statement($
1
), $
2
,
'
DD
'
,
-
1
, $
3
::FLOAT);
END;
$BODY$
LANGUAGE plpgsql VOLATILE STRICT;
--
COMMENTS
COMMENT
ON
FUNCTION pgr_primDD(
TEXT
,
BIGINT
,
NUMERIC
)
IS
'
pgr_primDD(Single Vertex)
- Undirected graph
- Parameters:
- Edges SQL with columns: id, source, target, cost [,reverse_cost]
- From root vertex identifier
- Distance
- Documentation:
- ${PROJECT_DOC_LINK}/pgr_primDD.html
'
;
COMMENT
ON
FUNCTION pgr_primDD(
TEXT
, ANYARRAY,
NUMERIC
)
IS
'
pgr_primDD(Multiple Vertices)
- Undirected graph
- Parameters:
- Edges SQL with columns: id, source, target, cost [,reverse_cost]
- From ARRAY[root vertices identifiers]
- Distance
- Documentation:
- ${PROJECT_DOC_LINK}/pgr_primDD.html
'
;
COMMENT
ON
FUNCTION pgr_primDD(
TEXT
,
BIGINT
, FLOAT)
IS
'
pgr_primDD(Single Vertex)
- Undirected graph
- Parameters:
- Edges SQL with columns: id, source, target, cost [,reverse_cost]
- From root vertex identifier
- Distance
- DocumentatiEdgeson:
- ${PROJECT_DOC_LINK}/pgr_primDD.html
'
;
COMMENT
ON
FUNCTION pgr_primDD(
TEXT
, ANYARRAY, FLOAT)
IS
'
pgr_primDD(Multiple Vertices)
- Undirected graph
- Parameters:
- Edges SQL with columns: id, source, target, cost [,reverse_cost]
- From ARRAY[root vertices identifiers]
- Distance
- Documentation:
- ${PROJECT_DOC_LINK}/pgr_primDD.html
'
;
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