wasCSharpSQLite – Blame information for rev 4

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1 office 1 # 2008 October 4
2 #
3 # The author disclaims copyright to this source code. In place of
4 # a legal notice, here is a blessing:
5 #
6 # May you do good and not evil.
7 # May you find forgiveness for yourself and forgive others.
8 # May you share freely, never taking more than you give.
9 #
10 #***********************************************************************
11 #
12 # $Id: indexedby.test,v 1.5 2009/03/22 20:36:19 drh Exp $
13  
14 set testdir [file dirname $argv0]
15 source $testdir/tester.tcl
16  
17 # Create a schema with some indexes.
18 #
19 do_test indexedby-1.1 {
20 execsql {
21 CREATE TABLE t1(a, b);
22 CREATE INDEX i1 ON t1(a);
23 CREATE INDEX i2 ON t1(b);
24  
25 CREATE TABLE t2(c, d);
26 CREATE INDEX i3 ON t2(c);
27 CREATE INDEX i4 ON t2(d);
28  
29 CREATE TABLE t3(e PRIMARY KEY, f);
30  
31 CREATE VIEW v1 AS SELECT * FROM t1;
32 }
33 } {}
34  
35 # Explain Query Plan
36 #
37 proc EQP {sql} {
38 uplevel "execsql {EXPLAIN QUERY PLAN $sql}"
39 }
40  
41 # These tests are to check that "EXPLAIN QUERY PLAN" is working as expected.
42 #
43 do_execsql_test indexedby-1.2 {
44 EXPLAIN QUERY PLAN select * from t1 WHERE a = 10;
45 } {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a=?) (~10 rows)}}
46 do_execsql_test indexedby-1.3 {
47 EXPLAIN QUERY PLAN select * from t1 ;
48 } {0 0 0 {SCAN TABLE t1 (~1000000 rows)}}
49 do_execsql_test indexedby-1.4 {
50 EXPLAIN QUERY PLAN select * from t1, t2 WHERE c = 10;
51 } {
52  
53  
54 }
55  
56 # Parser tests. Test that an INDEXED BY or NOT INDEX clause can be
57 # attached to a table in the FROM clause, but not to a sub-select or
58 # SQL view. Also test that specifying an index that does not exist or
59 # is attached to a different table is detected as an error.
60 #
61 do_test indexedby-2.1 {
62 execsql { SELECT * FROM t1 NOT INDEXED WHERE a = 'one' AND b = 'two'}
63 } {}
64 do_test indexedby-2.2 {
65 execsql { SELECT * FROM t1 INDEXED BY i1 WHERE a = 'one' AND b = 'two'}
66 } {}
67 do_test indexedby-2.3 {
68 execsql { SELECT * FROM t1 INDEXED BY i2 WHERE a = 'one' AND b = 'two'}
69 } {}
70  
71 do_test indexedby-2.4 {
72 catchsql { SELECT * FROM t1 INDEXED BY i3 WHERE a = 'one' AND b = 'two'}
73 } {1 {no such index: i3}}
74 do_test indexedby-2.5 {
75 catchsql { SELECT * FROM t1 INDEXED BY i5 WHERE a = 'one' AND b = 'two'}
76 } {1 {no such index: i5}}
77 do_test indexedby-2.6 {
78 catchsql { SELECT * FROM t1 INDEXED BY WHERE a = 'one' AND b = 'two'}
79 } {1 {near "WHERE": syntax error}}
80 do_test indexedby-2.7 {
81 catchsql { SELECT * FROM v1 INDEXED BY i1 WHERE a = 'one' }
82 } {1 {no such index: i1}}
83  
84 # Tests for single table cases.
85 #
86 do_execsql_test indexedby-3.1 {
87 EXPLAIN QUERY PLAN SELECT * FROM t1 NOT INDEXED WHERE a = 'one' AND b = 'two'
88 } {0 0 0 {SCAN TABLE t1 (~10000 rows)}}
89 do_execsql_test indexedby-3.2 {
90 EXPLAIN QUERY PLAN
91 SELECT * FROM t1 INDEXED BY i1 WHERE a = 'one' AND b = 'two'
92 } {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a=?) (~2 rows)}}
93 do_execsql_test indexedby-3.3 {
94 EXPLAIN QUERY PLAN
95 SELECT * FROM t1 INDEXED BY i2 WHERE a = 'one' AND b = 'two'
96 } {0 0 0 {SEARCH TABLE t1 USING INDEX i2 (b=?) (~2 rows)}}
97 do_test indexedby-3.4 {
98 catchsql { SELECT * FROM t1 INDEXED BY i2 WHERE a = 'one' }
99 } {1 {cannot use index: i2}}
100 do_test indexedby-3.5 {
101 catchsql { SELECT * FROM t1 INDEXED BY i2 ORDER BY a }
102 } {1 {cannot use index: i2}}
103 do_test indexedby-3.6 {
104 catchsql { SELECT * FROM t1 INDEXED BY i1 WHERE a = 'one' }
105 } {0 {}}
106 do_test indexedby-3.7 {
107 catchsql { SELECT * FROM t1 INDEXED BY i1 ORDER BY a }
108 } {0 {}}
109  
110 do_execsql_test indexedby-3.8 {
111 EXPLAIN QUERY PLAN
112 SELECT * FROM t3 INDEXED BY sqlite_autoindex_t3_1 ORDER BY e
113 } {0 0 0 {SCAN TABLE t3 USING INDEX sqlite_autoindex_t3_1 (~1000000 rows)}}
114 do_execsql_test indexedby-3.9 {
115 EXPLAIN QUERY PLAN
116 SELECT * FROM t3 INDEXED BY sqlite_autoindex_t3_1 WHERE e = 10
117 } {0 0 0 {SEARCH TABLE t3 USING INDEX sqlite_autoindex_t3_1 (e=?) (~1 rows)}}
118 do_test indexedby-3.10 {
119 catchsql { SELECT * FROM t3 INDEXED BY sqlite_autoindex_t3_1 WHERE f = 10 }
120 } {1 {cannot use index: sqlite_autoindex_t3_1}}
121 do_test indexedby-3.11 {
122 catchsql { SELECT * FROM t3 INDEXED BY sqlite_autoindex_t3_2 WHERE f = 10 }
123 } {1 {no such index: sqlite_autoindex_t3_2}}
124  
125 # Tests for multiple table cases.
126 #
127 do_execsql_test indexedby-4.1 {
128 EXPLAIN QUERY PLAN SELECT * FROM t1, t2 WHERE a = c
129 } {
130  
131  
132 }
133 do_execsql_test indexedby-4.2 {
134 EXPLAIN QUERY PLAN SELECT * FROM t1 INDEXED BY i1, t2 WHERE a = c
135 } {
136  
137  
138 }
139 do_test indexedby-4.3 {
140 catchsql {
141 SELECT * FROM t1 INDEXED BY i1, t2 INDEXED BY i3 WHERE a=c
142 }
143 } {1 {cannot use index: i1}}
144 do_test indexedby-4.4 {
145 catchsql {
146 SELECT * FROM t2 INDEXED BY i3, t1 INDEXED BY i1 WHERE a=c
147 }
148 } {1 {cannot use index: i3}}
149  
150 # Test embedding an INDEXED BY in a CREATE VIEW statement. This block
151 # also tests that nothing bad happens if an index refered to by
152 # a CREATE VIEW statement is dropped and recreated.
153 #
154 do_execsql_test indexedby-5.1 {
155 CREATE VIEW v2 AS SELECT * FROM t1 INDEXED BY i1 WHERE a > 5;
156 EXPLAIN QUERY PLAN SELECT * FROM v2
157 } {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a>?) (~250000 rows)}}
158 do_execsql_test indexedby-5.2 {
159 EXPLAIN QUERY PLAN SELECT * FROM v2 WHERE b = 10
160 } {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a>?) (~25000 rows)}}
161 do_test indexedby-5.3 {
162 execsql { DROP INDEX i1 }
163 catchsql { SELECT * FROM v2 }
164 } {1 {no such index: i1}}
165 do_test indexedby-5.4 {
166 # Recreate index i1 in such a way as it cannot be used by the view query.
167 execsql { CREATE INDEX i1 ON t1(b) }
168 catchsql { SELECT * FROM v2 }
169 } {1 {cannot use index: i1}}
170 do_test indexedby-5.5 {
171 # Drop and recreate index i1 again. This time, create it so that it can
172 # be used by the query.
173 execsql { DROP INDEX i1 ; CREATE INDEX i1 ON t1(a) }
174 catchsql { SELECT * FROM v2 }
175 } {0 {}}
176  
177 # Test that "NOT INDEXED" may use the rowid index, but not others.
178 #
179 do_execsql_test indexedby-6.1 {
180 EXPLAIN QUERY PLAN SELECT * FROM t1 WHERE b = 10 ORDER BY rowid
181 } {0 0 0 {SEARCH TABLE t1 USING INDEX i2 (b=?) (~10 rows)}}
182 do_execsql_test indexedby-6.2 {
183 EXPLAIN QUERY PLAN SELECT * FROM t1 NOT INDEXED WHERE b = 10 ORDER BY rowid
184 } {0 0 0 {SCAN TABLE t1 USING INTEGER PRIMARY KEY (~100000 rows)}}
185  
186 # Test that "INDEXED BY" can be used in a DELETE statement.
187 #
188 do_execsql_test indexedby-7.1 {
189 EXPLAIN QUERY PLAN DELETE FROM t1 WHERE a = 5
190 } {0 0 0 {SEARCH TABLE t1 USING COVERING INDEX i1 (a=?) (~10 rows)}}
191 do_execsql_test indexedby-7.2 {
192 EXPLAIN QUERY PLAN DELETE FROM t1 NOT INDEXED WHERE a = 5
193 } {0 0 0 {SCAN TABLE t1 (~100000 rows)}}
194 do_execsql_test indexedby-7.3 {
195 EXPLAIN QUERY PLAN DELETE FROM t1 INDEXED BY i1 WHERE a = 5
196 } {0 0 0 {SEARCH TABLE t1 USING COVERING INDEX i1 (a=?) (~10 rows)}}
197 do_execsql_test indexedby-7.4 {
198 EXPLAIN QUERY PLAN DELETE FROM t1 INDEXED BY i1 WHERE a = 5 AND b = 10
199 } {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a=?) (~2 rows)}}
200 do_execsql_test indexedby-7.5 {
201 EXPLAIN QUERY PLAN DELETE FROM t1 INDEXED BY i2 WHERE a = 5 AND b = 10
202 } {0 0 0 {SEARCH TABLE t1 USING INDEX i2 (b=?) (~2 rows)}}
203 do_test indexedby-7.6 {
204 catchsql { DELETE FROM t1 INDEXED BY i2 WHERE a = 5}
205 } {1 {cannot use index: i2}}
206  
207 # Test that "INDEXED BY" can be used in an UPDATE statement.
208 #
209 do_execsql_test indexedby-8.1 {
210 EXPLAIN QUERY PLAN UPDATE t1 SET rowid=rowid+1 WHERE a = 5
211 } {0 0 0 {SEARCH TABLE t1 USING COVERING INDEX i1 (a=?) (~10 rows)}}
212 do_execsql_test indexedby-8.2 {
213 EXPLAIN QUERY PLAN UPDATE t1 NOT INDEXED SET rowid=rowid+1 WHERE a = 5
214 } {0 0 0 {SCAN TABLE t1 (~100000 rows)}}
215 do_execsql_test indexedby-8.3 {
216 EXPLAIN QUERY PLAN UPDATE t1 INDEXED BY i1 SET rowid=rowid+1 WHERE a = 5
217 } {0 0 0 {SEARCH TABLE t1 USING COVERING INDEX i1 (a=?) (~10 rows)}}
218 do_execsql_test indexedby-8.4 {
219 EXPLAIN QUERY PLAN
220 UPDATE t1 INDEXED BY i1 SET rowid=rowid+1 WHERE a = 5 AND b = 10
221 } {0 0 0 {SEARCH TABLE t1 USING INDEX i1 (a=?) (~2 rows)}}
222 do_execsql_test indexedby-8.5 {
223 EXPLAIN QUERY PLAN
224 UPDATE t1 INDEXED BY i2 SET rowid=rowid+1 WHERE a = 5 AND b = 10
225 } {0 0 0 {SEARCH TABLE t1 USING INDEX i2 (b=?) (~2 rows)}}
226 do_test indexedby-8.6 {
227 catchsql { UPDATE t1 INDEXED BY i2 SET rowid=rowid+1 WHERE a = 5}
228 } {1 {cannot use index: i2}}
229  
230 # Test that bug #3560 is fixed.
231 #
232 do_test indexedby-9.1 {
233 execsql {
234 CREATE TABLE maintable( id integer);
235 CREATE TABLE joinme(id_int integer, id_text text);
236 CREATE INDEX joinme_id_text_idx on joinme(id_text);
237 CREATE INDEX joinme_id_int_idx on joinme(id_int);
238 }
239 } {}
240 do_test indexedby-9.2 {
241 catchsql {
242 select * from maintable as m inner join
243 joinme as j indexed by joinme_id_text_idx
244 on ( m.id = j.id_int)
245 }
246 } {1 {cannot use index: joinme_id_text_idx}}
247 do_test indexedby-9.3 {
248 catchsql { select * from maintable, joinme INDEXED by joinme_id_text_idx }
249 } {1 {cannot use index: joinme_id_text_idx}}
250  
251 # Make sure we can still create tables, indices, and columns whose name
252 # is "indexed".
253 #
254 do_test indexedby-10.1 {
255 execsql {
256 CREATE TABLE indexed(x,y);
257 INSERT INTO indexed VALUES(1,2);
258 SELECT * FROM indexed;
259 }
260 } {1 2}
261 do_test indexedby-10.2 {
262 execsql {
263 CREATE INDEX i10 ON indexed(x);
264 SELECT * FROM indexed indexed by i10 where x>0;
265 }
266 } {1 2}
267 do_test indexedby-10.3 {
268 execsql {
269 DROP TABLE indexed;
270 CREATE TABLE t10(indexed INTEGER);
271 INSERT INTO t10 VALUES(1);
272 CREATE INDEX indexed ON t10(indexed);
273 SELECT * FROM t10 indexed by indexed WHERE indexed>0
274 }
275 } {1}
276  
277 finish_test