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wl 1562 (To improve RTree indexes)

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some changes to make code nicer
This commit is contained in:
hf@deer.(none)
2004-06-02 19:11:57 +05:00
parent f200b0fbf0
commit 7cf1d2596b
5 changed files with 264 additions and 278 deletions
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10
mysql-test/r/gis-rtree.result
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@ -167,12 +167,10 @@ count(*)
150
EXPLAIN SELECT fid, AsText(g) FROM t1 WHERE Within(g, GeomFromText('Polygon((140 140,160 140,160 160,140 160,140 140))'));
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE t1 range g g 32 NULL 4 Using where
1 SIMPLE t1 range g g 32 NULL 7 Using where
SELECT fid, AsText(g) FROM t1 WHERE Within(g, GeomFromText('Polygon((140 140,160 140,160 160,140 160,140 140))'));
fid AsText(g)
1 LINESTRING(150 150,150 150)
11 LINESTRING(140 140,160 160)
2 LINESTRING(149 149,151 151)
3 LINESTRING(148 148,152 152)
4 LINESTRING(147 147,153 153)
5 LINESTRING(146 146,154 154)
@ -181,6 +179,8 @@ fid AsText(g)
8 LINESTRING(143 143,157 157)
9 LINESTRING(142 142,158 158)
10 LINESTRING(141 141,159 159)
11 LINESTRING(140 140,160 160)
2 LINESTRING(149 149,151 151)
DROP TABLE t1;
CREATE TABLE t2 (
fid INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
@ -305,10 +305,10 @@ id select_type table type possible_keys key key_len ref rows Extra
SELECT fid, AsText(g) FROM t2 WHERE Within(g,
GeomFromText('Polygon((40 40,60 40,60 60,40 60,40 40))'));
fid AsText(g)
46 LINESTRING(51 41,60 50)
56 LINESTRING(41 41,50 50)
45 LINESTRING(51 51,60 60)
55 LINESTRING(41 51,50 60)
56 LINESTRING(41 41,50 50)
46 LINESTRING(51 41,60 50)
DELETE FROM t2 WHERE Within(g, Envelope(GeometryFromWKB(LineString(Point(10 * 10 - 9, 10 * 10 - 9), Point(10 * 10, 10 * 10)))));
SELECT count(*) FROM t2;
count(*)