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--source include/have_geometry.inc
#
# Spatial objects with keys
#
#
# Bug #30825: Problems when putting a non-spatial index on a GIS column
#
CREATE TABLE t1 (p POINT);
CREATE TABLE t2 (p POINT, INDEX(p));
INSERT INTO t1 VALUES (POINTFROMTEXT('POINT(1 2)'));
INSERT INTO t2 VALUES (POINTFROMTEXT('POINT(1 2)'));
# no index, returns 1 as expected
SELECT COUNT(*) FROM t1 WHERE p=POINTFROMTEXT('POINT(1 2)');
# with index, returns 1 as expected
# EXPLAIN shows that the index is not used though
# due to the "most rows covered anyway, so a scan is more effective" rule
EXPLAIN
SELECT COUNT(*) FROM t2 WHERE p=POINTFROMTEXT('POINT(1 2)');
SELECT COUNT(*) FROM t2 WHERE p=POINTFROMTEXT('POINT(1 2)');
# adding another row to the table so that
# the "most rows covered" rule doesn't kick in anymore
# now EXPLAIN shows the index used on the table
# and we're getting the wrong result again
INSERT INTO t1 VALUES (POINTFROMTEXT('POINT(1 2)'));
INSERT INTO t2 VALUES (POINTFROMTEXT('POINT(1 2)'));
EXPLAIN
SELECT COUNT(*) FROM t1 WHERE p=POINTFROMTEXT('POINT(1 2)');
SELECT COUNT(*) FROM t1 WHERE p=POINTFROMTEXT('POINT(1 2)');
EXPLAIN
SELECT COUNT(*) FROM t2 WHERE p=POINTFROMTEXT('POINT(1 2)');
SELECT COUNT(*) FROM t2 WHERE p=POINTFROMTEXT('POINT(1 2)');
EXPLAIN
SELECT COUNT(*) FROM t2 IGNORE INDEX(p) WHERE p=POINTFROMTEXT('POINT(1 2)');
SELECT COUNT(*) FROM t2 IGNORE INDEX(p) WHERE p=POINTFROMTEXT('POINT(1 2)');
DROP TABLE t1, t2;
--echo End of 5.0 tests
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