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61 lines
1.9 KiB
61 lines
1.9 KiB
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#
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# Spatial objects with keys
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#
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#
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# Bug #30825: Problems when putting a non-spatial index on a GIS column
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#
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CREATE TABLE t1 (p POINT);
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CREATE TABLE t2 (p POINT);
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INSERT INTO t1 VALUES (ST_POINTFROMTEXT('POINT(1 2)'));
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INSERT INTO t2 VALUES (ST_POINTFROMTEXT('POINT(1 2)'));
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# no index, returns 1 as expected
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SELECT COUNT(*) FROM t1 WHERE p=ST_POINTFROMTEXT('POINT(1 2)');
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# with index, returns 1 as expected
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# EXPLAIN shows that the index is not used though
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# due to the "most rows covered anyway, so a scan is more effective" rule
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EXPLAIN
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SELECT COUNT(*) FROM t2 WHERE p=ST_POINTFROMTEXT('POINT(1 2)');
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SELECT COUNT(*) FROM t2 WHERE p=ST_POINTFROMTEXT('POINT(1 2)');
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# adding another row to the table so that
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# the "most rows covered" rule doesn't kick in anymore
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# now EXPLAIN shows the index used on the table
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# and we're getting the wrong result again
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INSERT INTO t1 VALUES (ST_POINTFROMTEXT('POINT(1 2)'));
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INSERT INTO t2 VALUES (ST_POINTFROMTEXT('POINT(1 2)'));
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EXPLAIN
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SELECT COUNT(*) FROM t1 WHERE p=ST_POINTFROMTEXT('POINT(1 2)');
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SELECT COUNT(*) FROM t1 WHERE p=ST_POINTFROMTEXT('POINT(1 2)');
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EXPLAIN
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SELECT COUNT(*) FROM t2 WHERE p=ST_POINTFROMTEXT('POINT(1 2)');
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SELECT COUNT(*) FROM t2 WHERE p=ST_POINTFROMTEXT('POINT(1 2)');
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EXPLAIN
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SELECT COUNT(*) FROM t2 WHERE p=ST_POINTFROMTEXT('POINT(1 2)');
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SELECT COUNT(*) FROM t2 WHERE p=ST_POINTFROMTEXT('POINT(1 2)');
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DROP TABLE t1, t2;
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--echo End of 5.0 tests
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--echo #
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--echo # Test for bug #58650 "Failing assertion: primary_key_no == -1 ||
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--echo # primary_key_no == 0".
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--echo #
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--disable_warnings
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drop table if exists t1;
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--enable_warnings
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--echo # The minimal test case.
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create table t1 (a int not null, b linestring not null, unique key a (a));
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drop table t1;
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--echo # The original test case.
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create table t1 (a int not null, b linestring not null);
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create unique index a on t1(a);
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drop table t1;
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