pgRouting · cvvergara · Feb 19, 2026 · Feb 5, 2026 · Feb 5, 2026 · Feb 7, 2026
diff --git a/NEWS.md b/NEWS.md
@@ -19,6 +19,7 @@ To see all issues & pull requests closed by this release see the
 * [#3055](https://github.com/pgRouting/pgrouting/issues/3055): bdDijkstra: use the shortest_path process and driver
 * [#3056](https://github.com/pgRouting/pgrouting/issues/3056): edwardMoore: use the shortest_path process and driver
 * [#3060](https://github.com/pgRouting/pgrouting/issues/3060): dagShortestPath: use the shortest_path process and driver
+* [#3064](https://github.com/pgRouting/pgrouting/issues/3064): Astar: create and use a process and driver for Astar
 
 ## pgRouting 4.0
 

diff --git a/doc/src/release_notes.rst b/doc/src/release_notes.rst
@@ -44,6 +44,7 @@ To see all issues & pull requests closed by this release see the
 * :issue:`3055`: bdDijkstra: use the shortest_path process and driver
 * :issue:`3056`: edwardMoore: use the shortest_path process and driver
 * :issue:`3060`: dagShortestPath: use the shortest_path process and driver
+* :issue:`3064`: Astar: create and use a process and driver for Astar
 
 pgRouting 4.0
 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

diff --git a/include/c_common/enums.h b/include/c_common/enums.h
@@ -36,7 +36,9 @@ enum Which {
     /** allpairs **/
     FLOYD = 31, JOHNSON,
     /** metrics **/
-    BANDWIDTH
+    BANDWIDTH,
+    /** with edges that have x y */
+    ASTAR = 400, BDASTAR
 };
 
 #endif  // INCLUDE_C_COMMON_ENUMS_H_
diff --git a/include/cpp_common/utilities.hpp b/include/cpp_common/utilities.hpp
@@ -33,6 +33,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 namespace pgrouting {
 
 std::string get_name(Which);
+std::string get_name(Which, bool, bool);
 std::string get_name(Which, bool, bool, bool);
 char estimate_drivingSide(char, Which);
 void get_new_queries(const std::string&, const std::string&, std::string&, std::string&);

diff --git a/include/drivers/bdAstar/bdAstar_driver.h → include/drivers/astar_driver.hpp b/include/drivers/bdAstar/bdAstar_driver.h → include/drivers/astar_driver.hpp
@@ -1,13 +1,12 @@
 /*PGR-GNU*****************************************************************
-File: bdAstar_driver.h
+File: astar_driver.hpp
 
-Generated with Template by:
 Copyright (c) 2007-2026 pgRouting developers
 Mail: project@pgrouting.org
 
-Function's developer:
-Copyright (c) 2015 Celia Virginia Vergara Castillo
-Mail: vicky_vergara@hotmail.com
+Design of one process & driver file by
+Copyright (c) 2026 Celia Virginia Vergara Castillo
+Mail: vicky at erosion.dev
 
 ------
 
@@ -27,51 +26,38 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
  ********************************************************************PGR-GNU*/
 
-#ifndef INCLUDE_DRIVERS_BDASTAR_BDASTAR_DRIVER_H_
-#define INCLUDE_DRIVERS_BDASTAR_BDASTAR_DRIVER_H_
+#ifndef INCLUDE_DRIVERS_ASTAR_DRIVER_HPP_
+#define INCLUDE_DRIVERS_ASTAR_DRIVER_HPP_
 #pragma once
 
-#ifdef __cplusplus
-extern "C" {
-#endif
 
-#include <postgres.h>
-#include <utils/array.h>
+#include <cstddef>
+#include <cstdint>
+#include <string>
+#include <sstream>
 
-#ifdef __cplusplus
-}
-#endif
+#include "c_common/enums.h"
 
-#include "cpp_common/undefPostgresDefine.hpp"
-
-#ifdef __cplusplus
-#   include <cstddef>
-#   include <cstdint>
 using Path_rt = struct Path_rt;
-#else
-#   include <stddef.h>
-#   include <stdint.h>
-typedef struct Path_rt Path_rt;
-#endif
-
-#ifdef __cplusplus
-extern "C" {
-#endif
+using ArrayType = struct ArrayType;
 
-    void pgr_do_bdAstar(
-            const char*,
-            const char*,
-            ArrayType*, ArrayType*,
+namespace pgrouting {
+namespace drivers {
 
-            bool, int, double, double, bool,
+void do_astar(
+        const std::string&, const std::string&,
+        ArrayType*, ArrayType*,
 
-            Path_rt**, size_t*,
+        bool, bool, bool,
 
-            char**, char**, char**);
+        int, double, double,
 
+        Which,
+        bool&,
+        Path_rt*&, size_t&,
+        std::ostringstream&, std::ostringstream&, std::ostringstream&);
 
-#ifdef __cplusplus
-}
-#endif
+}  // namespace drivers
+}  // namespace pgrouting
 
-#endif  //  INCLUDE_DRIVERS_BDASTAR_BDASTAR_DRIVER_H_
+#endif  // INCLUDE_DRIVERS_ASTAR_DRIVER_HPP_
diff --git a/include/drivers/astar/astar_driver.h → include/process/astar_process.h b/include/drivers/astar/astar_driver.h → include/process/astar_process.h
@@ -1,12 +1,11 @@
 /*PGR-GNU*****************************************************************
-File: astar_driver.h
+File: astar_process.h
 
 Copyright (c) 2007-2026 pgRouting developers
 Mail: project@pgrouting.org
 
-Function's developer:
-Copyright (c) 2023 Celia Virginia Vergara Castillo
-Copyright (c) 2015 Celia Virginia Vergara Castillo
+Design of one process & driver file by
+Copyright (c) 2026 Celia Virginia Vergara Castillo
 Mail: vicky at erosion.dev
 
 ------
@@ -27,51 +26,42 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
  ********************************************************************PGR-GNU*/
 
-#ifndef INCLUDE_DRIVERS_ASTAR_ASTAR_DRIVER_H_
-#define INCLUDE_DRIVERS_ASTAR_ASTAR_DRIVER_H_
+#ifndef INCLUDE_PROCESS_ASTAR_PROCESS_H_
+#define INCLUDE_PROCESS_ASTAR_PROCESS_H_
 #pragma once
 
 #ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <postgres.h>
-#include <utils/array.h>
-
-#ifdef __cplusplus
-}
-#endif
-
-#include "cpp_common/undefPostgresDefine.hpp"
-
-#ifdef __cplusplus
-#   include <cstddef>
-#   include <cstdint>
+#include <cstddef>
+#include <cstdint>
 using Path_rt = struct Path_rt;
+using ArrayType = struct ArrayType;
 #else
-#   include <stddef.h>
-#   include <stdint.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <stdbool.h>
 typedef struct Path_rt Path_rt;
+typedef struct ArrayType ArrayType;
 #endif
 
+#include "c_common/enums.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-void pgr_do_astar(
-        const char*,
-        const char*,
-        ArrayType*,
-        ArrayType*,
+void pgr_process_astar(
+        const char*, const char*,
+        ArrayType*, ArrayType*,
 
-        bool, int, double, double, bool, bool,
+        bool, bool, bool,
 
-        Path_rt**, size_t*,
-        char**, char**, char**);
+        int, double, double,
 
+        enum Which,
+        Path_rt**, size_t*);
 
 #ifdef __cplusplus
 }
 #endif
 
-#endif  // INCLUDE_DRIVERS_ASTAR_ASTAR_DRIVER_H_
+#endif  // INCLUDE_PROCESS_ASTAR_PROCESS_H_
diff --git a/locale/en/LC_MESSAGES/pgrouting_doc_strings.po b/locale/en/LC_MESSAGES/pgrouting_doc_strings.po
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: pgRouting v4.1\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2026-02-07 19:07+0000\n"
+"POT-Creation-Date: 2026-02-19 14:11+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -3951,6 +3951,11 @@ msgid ""
 "dagShortestPath: use the shortest_path process and driver"
 msgstr ""
 
+msgid ""
+"`#3064 <https://github.com/pgRouting/pgrouting/issues/3064>`__: Astar: "
+"create and use a process and driver for Astar"
+msgstr ""
+
 msgid "All releases"
 msgstr ""
 

diff --git a/locale/pot/pgrouting_doc_strings.pot b/locale/pot/pgrouting_doc_strings.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: pgRouting v4.1\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2026-02-07 19:07+0000\n"
+"POT-Creation-Date: 2026-02-19 14:11+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -3544,6 +3544,9 @@ msgstr ""
 msgid "`#3060 <https://github.com/pgRouting/pgrouting/issues/3060>`__: dagShortestPath: use the shortest_path process and driver"
 msgstr ""
 
+msgid "`#3064 <https://github.com/pgRouting/pgrouting/issues/3064>`__: Astar: create and use a process and driver for Astar"
+msgstr ""
+
 msgid "All releases"
 msgstr ""
 

diff --git a/pgtap/astar/aStarCostMatrix/no_crash_test.pg b/pgtap/astar/aStarCostMatrix/no_crash_test.pg
@@ -6,7 +6,7 @@
 BEGIN;
 
 UPDATE edges SET cost = sign(cost), reverse_cost = sign(reverse_cost);
-SELECT plan(15);
+SELECT plan(16);
 
 PREPARE edges_q AS
 SELECT id, source, target, cost, reverse_cost, x1, y1, x2, y2  FROM edges;
@@ -49,6 +49,7 @@ LANGUAGE plpgsql VOLATILE;
 
 
 SELECT * FROM test_function();
+SELECT throw_on_empty_edges_sql('pgr_astarCostMatrix', ',ARRAY[5,6]');
 
 SELECT finish();
 ROLLBACK;
diff --git a/pgtap/astar/astar/no_crash_test.pg b/pgtap/astar/astar/no_crash_test.pg
@@ -7,8 +7,11 @@ BEGIN;
 
 
 UPDATE edges SET cost = sign(cost), reverse_cost = sign(reverse_cost);
-SELECT CASE WHEN min_version('3.2.0') THEN plan(97) ELSE plan(84) END;
+SELECT CASE WHEN min_version('3.2.0') THEN plan(98) ELSE plan(85) END;
 
 SELECT general_no_crash('pgr_aStar');
+SELECT throw_on_empty_edges_sql('pgr_aStar', ',1,2');
+
 SELECT finish();
+
 ROLLBACK;
diff --git a/pgtap/astar/astarCost/no_crash_test.pg b/pgtap/astar/astarCost/no_crash_test.pg
@@ -7,10 +7,11 @@ BEGIN;
 
 
 UPDATE edges SET cost = sign(cost), reverse_cost = sign(reverse_cost);
-SELECT CASE WHEN min_version('3.2.0') THEN plan(97) ELSE plan(84) END;
+SELECT CASE WHEN min_version('3.2.0') THEN plan(98) ELSE plan(85) END;
 
 
-SELECT general_no_crash('pgr_aStar');
+SELECT general_no_crash('pgr_aStarCost');
+SELECT throw_on_empty_edges_sql('pgr_aStarCost', ',1,2');
+
 SELECT finish();
 ROLLBACK;
-
diff --git a/sql/astar/astarCostMatrix.sql b/sql/astar/astarCostMatrix.sql
@@ -49,7 +49,7 @@ CREATE FUNCTION pgr_aStarCostMatrix(
 RETURNS SETOF RECORD AS
 $BODY$
     SELECT a.start_vid, a.end_vid, a.agg_cost
-    FROM _pgr_astar(_pgr_get_statement($1), $2, $2, $3, $4, $5::FLOAT, $6::FLOAT, true) a;
+    FROM _pgr_astar(_pgr_get_statement($1), $2::BIGINT[], '{}'::BIGINT[], $3, $4, $5::FLOAT, $6::FLOAT, true) a;
 $BODY$
 LANGUAGE SQL VOLATILE STRICT
 COST ${COST_HIGH} ROWS ${ROWS_HIGH};

diff --git a/sql/bdAstar/bdAstarCostMatrix.sql b/sql/bdAstar/bdAstarCostMatrix.sql
@@ -46,7 +46,7 @@ CREATE FUNCTION pgr_bdAstarCostMatrix(
 RETURNS SETOF RECORD AS
 $BODY$
     SELECT a.start_vid, a.end_vid, a.agg_cost
-    FROM _pgr_bdAstar(_pgr_get_statement($1), $2::BIGINT[], $2::BIGINT[], $3, $4, $5::FLOAT, $6::FLOAT, true) a;
+    FROM _pgr_bdAstar(_pgr_get_statement($1), $2::BIGINT[], '{}'::BIGINT[], $3, $4, $5::FLOAT, $6::FLOAT, true) a;
 $BODY$
 LANGUAGE SQL VOLATILE STRICT
 COST ${COST_HIGH} ROWS ${ROWS_HIGH};

diff --git a/src/astar/CMakeLists.txt b/src/astar/CMakeLists.txt
@@ -1,8 +1,10 @@
 # This file is part of the pgRouting project.
 # Copyright (c) 2007-2026 pgRouting developers
 # License: GPL-2 See https://github.com/pgRouting/pgrouting/blob/main/LICENSE
+
 ADD_LIBRARY(astar OBJECT
     astar.c
 
     astar_driver.cpp
-    )
+    astar_process.cpp
+)