Regression tests for 796647

mysql-test/suite/oqgraph/regression_796647.result

+DROP TABLE IF EXISTS graph_base;
+DROP TABLE IF EXISTS graph;
+CREATE TABLE graph_base (
+von INT NOT NULL,
+nach INT NOT NULL,
+weight DOUBLE NOT NULL,
+PRIMARY KEY (von,nach),
+INDEX (von)
+) ENGINE=MyISAM;
+CREATE TABLE graph (
+latch   VARCHAR(32) NULL,
+origid  BIGINT    UNSIGNED NULL,
+destid  BIGINT    UNSIGNED NULL,
+weight  DOUBLE    NULL,
+seq     BIGINT    UNSIGNED NULL,
+linkid  BIGINT    UNSIGNED NULL,
+KEY (latch, origid, destid) USING HASH,
+KEY (latch, origid, destid) USING HASH
+) ENGINE=OQGRAPH DATA_TABLE='graph_base' ORIGID='von' DESTID='nach' WEIGHT='weight';
+INSERT INTO graph_base(von,nach,weight) VALUES (3,5,2), (5,4,1), (5,6,1);
+SELECT * FROM graph_base;
+von	nach	weight
+3	5	2
+5	4	1
+5	6	1
+SELECT * FROM graph;
+latch	origid	destid	weight	seq	linkid
+NULL	3	5	2	NULL	NULL
+NULL	5	4	1	NULL	NULL
+NULL	5	6	1	NULL	NULL
+INSERT INTO graph_base(von,nach,weight) VALUES (6,3,1);
+SELECT * FROM graph;
+latch	origid	destid	weight	seq	linkid
+NULL	3	5	2	NULL	NULL
+NULL	5	4	1	NULL	NULL
+NULL	5	6	1	NULL	NULL
+NULL	6	3	1	NULL	NULL
+FLUSH TABLES;
+DROP TABLE graph_base;
+DROP TABLE graph;

mysql-test/suite/oqgraph/regression_796647.test

+--disable_warnings
+DROP TABLE IF EXISTS graph_base;
+DROP TABLE IF EXISTS graph;
+--enable_warnings
+
+
+# Create the backing store
+CREATE TABLE graph_base (
+    von INT NOT NULL,
+    nach INT NOT NULL,
+    weight DOUBLE NOT NULL,
+    PRIMARY KEY (von,nach),
+    INDEX (von)
+  ) ENGINE=MyISAM;
+
+
+CREATE TABLE graph (
+    latch   VARCHAR(32) NULL,
+    origid  BIGINT    UNSIGNED NULL,
+    destid  BIGINT    UNSIGNED NULL,
+    weight  DOUBLE    NULL,
+    seq     BIGINT    UNSIGNED NULL,
+    linkid  BIGINT    UNSIGNED NULL,
+    KEY (latch, origid, destid) USING HASH,
+    KEY (latch, origid, destid) USING HASH
+  ) ENGINE=OQGRAPH DATA_TABLE='graph_base' ORIGID='von' DESTID='nach' WEIGHT='weight';
+
+INSERT INTO graph_base(von,nach,weight) VALUES (3,5,2), (5,4,1), (5,6,1);
+
+SELECT * FROM graph_base;
+
+SELECT * FROM graph;
+
+INSERT INTO graph_base(von,nach,weight) VALUES (6,3,1);
+
+SELECT * FROM graph;
+
+FLUSH TABLES;
+
+DROP TABLE graph_base;
+DROP TABLE graph;
+
+

mysql-test/suite/oqgraph/regression_796647b.test

+--disable_warnings
+DROP TABLE IF EXISTS graph_base;
+DROP TABLE IF EXISTS graph;
+--enable_warnings
+
+# Create the backing store
+CREATE TABLE graph_base (
+    from_id INT UNSIGNED NOT NULL,
+    to_id INT UNSIGNED NOT NULL,
+    PRIMARY KEY (from_id,to_id),
+    INDEX (to_id)
+  ) ENGINE=MyISAM;
+
+
+CREATE TABLE graph (
+    latch   VARCHAR(32) NULL,
+    origid  BIGINT    UNSIGNED NULL,
+    destid  BIGINT    UNSIGNED NULL,
+    weight  DOUBLE    NULL,
+    seq     BIGINT    UNSIGNED NULL,
+    linkid  BIGINT    UNSIGNED NULL,
+    KEY (latch, origid, destid) USING HASH,
+    KEY (latch, destid, origid) USING HASH
+  ) ENGINE=OQGRAPH DATA_TABLE='graph_base' ORIGID='from_id', DESTID='to_id';
+
+INSERT INTO graph_base(from_id, to_id) VALUES (1,2), (2,1);
+INSERT INTO graph_base(from_id, to_id) VALUES (1,3), (3,1);
+INSERT INTO graph_base(from_id, to_id) VALUES (3,4), (4,3);
+INSERT INTO graph_base(from_id, to_id) VALUES (5,6), (6,5);
+
+SELECT count(*) FROM graph;
+SELECT count(*) FROM graph_base;
+
+INSERT INTO graph_base(from_id, to_id) VALUES (5,7);
+INSERT INTO graph_base(from_id, to_id) VALUES (9,9);
+INSERT INTO graph_base(from_id, to_id) VALUES (10,11);
+INSERT INTO graph_base(from_id, to_id) VALUES (11,12);
+INSERT INTO graph_base(from_id, to_id) VALUES (12,10);
+
+SELECT count(*) FROM graph;
+SELECT count(*) FROM graph_base;
+
+INSERT INTO graph_base(from_id, to_id) VALUES (11,13);
+INSERT INTO graph_base(from_id, to_id) VALUES (10,14);
+INSERT INTO graph_base(from_id, to_id) VALUES (14,13);
+
+SELECT count(*) FROM graph;
+SELECT count(*) FROM graph_base;
+
+DELETE FROM graph_base where from_id=10 and to_id=11;
+INSERT INTO graph_base(from_id, to_id) VALUES (10,15);
+INSERT INTO graph_base(from_id, to_id) VALUES (15,13);
+INSERT INTO graph_base(from_id, to_id) VALUES (10,11);
+
+SELECT count(*) FROM graph;
+SELECT count(*) FROM graph_base;
+
+INSERT INTO graph_base(from_id, to_id) VALUES (21,22);
+INSERT INTO graph_base(from_id, to_id) VALUES (4,17);
+INSERT INTO graph_base(from_id, to_id) VALUES (4,16);
+INSERT INTO graph_base(from_id, to_id) VALUES (17,18);
+INSERT INTO graph_base (from_id,to_id) VALUES (4,6);
+
+#-- Without this when the line immediately after gets executed
+#-- we get a segfault
+SELECT count(*) FROM graph;
+SELECT count(*) FROM graph_base;
+
+--echo # And delete all references to node 5
+DELETE FROM graph_base WHERE from_id=5;
+DELETE FROM graph_base WHERE from_id=3 AND to_id=5;
+
+#-- The following queries would currently return incorrect results
+#-- 6 rows instead of 21
+#-- Maybe manifestation of https://bugs.launchpad.net/oqgraph/+bug/796647
+--echo # This is currently bogus:
+SELECT count(*) FROM graph;
+SELECT count(*) FROM graph_base;
+
+DELETE FROM graph_base;
+
+#-- The following line would hang mysqld currently, see bug https://bugs.launchpad.net/oqgraph/+bug/1195735
+#-- SELECT * FROM graph;
+
+FLUSH TABLES;
+TRUNCATE TABLE graph_base;
+
+DROP TABLE graph_base;
+DROP TABLE graph;
+
+