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44 lines
1.4 KiB
Text
44 lines
1.4 KiB
Text
# Regression test for https://bugs.launchpad.net/oqgraph/+bug/1195735
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#--reproduce bug where select * from graph after delete from graph_base hangs the server
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--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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--echo One select of any clauses at all on graph here caused a hang on the select after the DELETE FROM
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#-- even this if it is the only one - but it doesnt hang here ... SELECT * FROM graph;
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SELECT * FROM graph WHERE destid=2 and origid=1;
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DELETE FROM graph_base;
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#-- Bug 1195735 hangs on the next line
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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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--error S42S02
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SELECT * FROM graph WHERE latch='dijkstras' AND origid=1 AND destid=6;
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DROP TABLE graph;
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