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gis_keys.inc
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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 --echo # --echo # Test for bug #58650 "Failing assertion: primary_key_no == -1 || --echo # primary_key_no == 0". --echo # --disable_warnings drop table if exists t1; --enable_warnings --echo # The minimal test case. create table t1 (a int not null, b linestring not null, unique key b (b(12)), unique key a (a)); drop table t1; --echo # The original test case. create table t1 (a int not null, b linestring not null, unique key b (b(12))); create unique index a on t1(a); drop table t1;