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56 lines
1.8 KiB
Text
56 lines
1.8 KiB
Text
DROP TABLE IF EXISTS graph_base;
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DROP TABLE IF EXISTS graph;
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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 * FROM graph WHERE latch = 'breadth_first' AND destid = 1;
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latch origid destid weight seq linkid
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breadth_first NULL 1 1 2 2
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breadth_first NULL 1 0 1 1
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SELECT * FROM graph WHERE latch = 'breadth_first' AND destid = 2;
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latch origid destid weight seq linkid
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breadth_first NULL 2 1 2 1
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breadth_first NULL 2 0 1 2
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SELECT * FROM graph WHERE latch = 'breadth_first' AND origid = 1;
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latch origid destid weight seq linkid
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breadth_first 1 NULL 1 2 2
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breadth_first 1 NULL 0 1 1
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SELECT * FROM graph WHERE latch = 'breadth_first' AND origid = 2;
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latch origid destid weight seq linkid
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breadth_first 2 NULL 1 2 1
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breadth_first 2 NULL 0 1 2
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SELECT * FROM graph WHERE latch = '2' AND destid = 1;
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latch origid destid weight seq linkid
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2 NULL 1 1 2 2
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2 NULL 1 0 1 1
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SELECT * FROM graph WHERE latch = '2' AND destid = 2;
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latch origid destid weight seq linkid
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2 NULL 2 1 2 1
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2 NULL 2 0 1 2
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SELECT * FROM graph WHERE latch = '2' AND origid = 1;
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latch origid destid weight seq linkid
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2 1 NULL 1 2 2
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2 1 NULL 0 1 1
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SELECT * FROM graph WHERE latch = '2' AND origid = 2;
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latch origid destid weight seq linkid
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2 2 NULL 1 2 1
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2 2 NULL 0 1 2
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DELETE FROM graph_base;
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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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