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84 lines
2.2 KiB
Text
84 lines
2.2 KiB
Text
--disable_warnings
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DROP TABLE IF EXISTS graph_base;
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DROP TABLE IF EXISTS graph;
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--enable_warnings
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# Create the backing store
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CREATE TABLE graph_base (
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from_id INT UNSIGNED NOT NULL,
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to_id INT UNSIGNED NOT NULL,
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PRIMARY KEY (from_id,to_id),
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INDEX (to_id)
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) ENGINE=MyISAM;
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CREATE TABLE graph (
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latch VARCHAR(32) NULL,
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origid BIGINT UNSIGNED NULL,
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destid BIGINT UNSIGNED NULL,
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weight DOUBLE NULL,
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seq BIGINT UNSIGNED NULL,
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linkid BIGINT UNSIGNED NULL,
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KEY (latch, origid, destid) USING HASH,
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KEY (latch, destid, origid) USING HASH
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) ENGINE=OQGRAPH DATA_TABLE='graph_base' ORIGID='from_id', DESTID='to_id';
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INSERT INTO graph_base(from_id, to_id) VALUES (1,2), (2,1);
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SELECT count(*) FROM graph;
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SELECT count(*) FROM graph_base;
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INSERT INTO graph_base(from_id, to_id) VALUES (12,10);
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SELECT count(*) FROM graph;
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SELECT count(*) FROM graph_base;
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INSERT INTO graph_base(from_id, to_id) VALUES (14,13);
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SELECT count(*) FROM graph;
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SELECT count(*) FROM graph_base;
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DELETE FROM graph_base where from_id=10 and to_id=11;
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INSERT INTO graph_base(from_id, to_id) VALUES (10,15);
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INSERT INTO graph_base(from_id, to_id) VALUES (15,13);
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INSERT INTO graph_base(from_id, to_id) VALUES (10,11);
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SELECT count(*) FROM graph;
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SELECT count(*) FROM graph_base;
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INSERT INTO graph_base(from_id, to_id) VALUES (21,22);
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INSERT INTO graph_base (from_id,to_id) VALUES (4,6);
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#-- Without this when the line immediately after gets executed
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#-- we get a segfault
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SELECT count(*) FROM graph;
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SELECT count(*) FROM graph_base;
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SELECT * FROM graph where latch='0';
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SELECT * FROM graph_base;
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--echo # And delete all references to node 2
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DELETE FROM graph_base WHERE from_id=2;
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DELETE FROM graph_base WHERE to_id=2;
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SELECT count(*) FROM graph;
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SELECT count(*) FROM graph_base;
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SELECT * FROM graph where latch='0';
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SELECT * FROM graph_base;
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DELETE FROM graph_base;
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SELECT count(*) FROM graph;
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SELECT count(*) FROM graph_base;
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SELECT * FROM graph where latch='0';
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SELECT * FROM graph_base;
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#-- The following line would hang mysqld currently, see bug https://bugs.launchpad.net/oqgraph/+bug/1195735
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#-- SELECT * FROM graph;
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FLUSH TABLES;
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TRUNCATE TABLE graph_base;
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DROP TABLE graph_base;
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DROP TABLE graph;
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