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| 1 # 2005 July 22 | |
| 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 # This file implements regression tests for SQLite library. | |
| 12 # This file implements tests for the ANALYZE command. | |
| 13 # | |
| 14 # $Id: analyze.test,v 1.9 2008/08/11 18:44:58 drh Exp $ | |
| 15 | |
| 16 set testdir [file dirname $argv0] | |
| 17 source $testdir/tester.tcl | |
| 18 | |
| 19 # There is nothing to test if ANALYZE is disable for this build. | |
| 20 # | |
| 21 ifcapable {!analyze} { | |
| 22 finish_test | |
| 23 return | |
| 24 } | |
| 25 | |
| 26 # Basic sanity checks. | |
| 27 # | |
| 28 do_test analyze-1.1 { | |
| 29 catchsql { | |
| 30 ANALYZE no_such_table | |
| 31 } | |
| 32 } {1 {no such table: no_such_table}} | |
| 33 do_test analyze-1.2 { | |
| 34 execsql { | |
| 35 SELECT count(*) FROM sqlite_master WHERE name='sqlite_stat1' | |
| 36 } | |
| 37 } {0} | |
| 38 do_test analyze-1.3 { | |
| 39 catchsql { | |
| 40 ANALYZE no_such_db.no_such_table | |
| 41 } | |
| 42 } {1 {unknown database no_such_db}} | |
| 43 do_test analyze-1.4 { | |
| 44 execsql { | |
| 45 SELECT count(*) FROM sqlite_master WHERE name='sqlite_stat1' | |
| 46 } | |
| 47 } {0} | |
| 48 do_test analyze-1.5.1 { | |
| 49 catchsql { | |
| 50 ANALYZE | |
| 51 } | |
| 52 } {0 {}} | |
| 53 do_test analyze-1.5.2 { | |
| 54 catchsql { | |
| 55 PRAGMA empty_result_callbacks=1; | |
| 56 ANALYZE | |
| 57 } | |
| 58 } {0 {}} | |
| 59 do_test analyze-1.6 { | |
| 60 execsql { | |
| 61 SELECT count(*) FROM sqlite_master WHERE name='sqlite_stat1' | |
| 62 } | |
| 63 } {1} | |
| 64 do_test analyze-1.6.2 { | |
| 65 catchsql { | |
| 66 CREATE INDEX stat1idx ON sqlite_stat1(idx); | |
| 67 } | |
| 68 } {1 {table sqlite_stat1 may not be indexed}} | |
| 69 do_test analyze-1.6.3 { | |
| 70 catchsql { | |
| 71 CREATE INDEX main.stat1idx ON SQLite_stat1(idx); | |
| 72 } | |
| 73 } {1 {table sqlite_stat1 may not be indexed}} | |
| 74 do_test analyze-1.7 { | |
| 75 execsql { | |
| 76 SELECT * FROM sqlite_stat1 | |
| 77 } | |
| 78 } {} | |
| 79 do_test analyze-1.8 { | |
| 80 catchsql { | |
| 81 ANALYZE main | |
| 82 } | |
| 83 } {0 {}} | |
| 84 do_test analyze-1.9 { | |
| 85 execsql { | |
| 86 SELECT * FROM sqlite_stat1 | |
| 87 } | |
| 88 } {} | |
| 89 do_test analyze-1.10 { | |
| 90 catchsql { | |
| 91 CREATE TABLE t1(a,b); | |
| 92 ANALYZE main.t1; | |
| 93 } | |
| 94 } {0 {}} | |
| 95 do_test analyze-1.11 { | |
| 96 execsql { | |
| 97 SELECT * FROM sqlite_stat1 | |
| 98 } | |
| 99 } {} | |
| 100 do_test analyze-1.12 { | |
| 101 catchsql { | |
| 102 ANALYZE t1; | |
| 103 } | |
| 104 } {0 {}} | |
| 105 do_test analyze-1.13 { | |
| 106 execsql { | |
| 107 SELECT * FROM sqlite_stat1 | |
| 108 } | |
| 109 } {} | |
| 110 | |
| 111 # Create some indices that can be analyzed. But do not yet add | |
| 112 # data. Without data in the tables, no analysis is done. | |
| 113 # | |
| 114 do_test analyze-2.1 { | |
| 115 execsql { | |
| 116 CREATE INDEX t1i1 ON t1(a); | |
| 117 ANALYZE main.t1; | |
| 118 SELECT * FROM sqlite_stat1 ORDER BY idx; | |
| 119 } | |
| 120 } {} | |
| 121 do_test analyze-2.2 { | |
| 122 execsql { | |
| 123 CREATE INDEX t1i2 ON t1(b); | |
| 124 ANALYZE t1; | |
| 125 SELECT * FROM sqlite_stat1 ORDER BY idx; | |
| 126 } | |
| 127 } {} | |
| 128 do_test analyze-2.3 { | |
| 129 execsql { | |
| 130 CREATE INDEX t1i3 ON t1(a,b); | |
| 131 ANALYZE main; | |
| 132 SELECT * FROM sqlite_stat1 ORDER BY idx; | |
| 133 } | |
| 134 } {} | |
| 135 | |
| 136 # Start adding data to the table. Verify that the analysis | |
| 137 # is done correctly. | |
| 138 # | |
| 139 do_test analyze-3.1 { | |
| 140 execsql { | |
| 141 INSERT INTO t1 VALUES(1,2); | |
| 142 INSERT INTO t1 VALUES(1,3); | |
| 143 ANALYZE main.t1; | |
| 144 SELECT idx, stat FROM sqlite_stat1 ORDER BY idx; | |
| 145 } | |
| 146 } {t1i1 {2 2} t1i2 {2 1} t1i3 {2 2 1}} | |
| 147 do_test analyze-3.2 { | |
| 148 execsql { | |
| 149 INSERT INTO t1 VALUES(1,4); | |
| 150 INSERT INTO t1 VALUES(1,5); | |
| 151 ANALYZE t1; | |
| 152 SELECT idx, stat FROM sqlite_stat1 ORDER BY idx; | |
| 153 } | |
| 154 } {t1i1 {4 4} t1i2 {4 1} t1i3 {4 4 1}} | |
| 155 do_test analyze-3.3 { | |
| 156 execsql { | |
| 157 INSERT INTO t1 VALUES(2,5); | |
| 158 ANALYZE main; | |
| 159 SELECT idx, stat FROM sqlite_stat1 ORDER BY idx; | |
| 160 } | |
| 161 } {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1}} | |
| 162 do_test analyze-3.4 { | |
| 163 execsql { | |
| 164 CREATE TABLE t2 AS SELECT * FROM t1; | |
| 165 CREATE INDEX t2i1 ON t2(a); | |
| 166 CREATE INDEX t2i2 ON t2(b); | |
| 167 CREATE INDEX t2i3 ON t2(a,b); | |
| 168 ANALYZE; | |
| 169 SELECT idx, stat FROM sqlite_stat1 ORDER BY idx; | |
| 170 } | |
| 171 } {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3} t2i2 {5 2} t2i3 {5 3 1}} | |
| 172 do_test analyze-3.5 { | |
| 173 execsql { | |
| 174 DROP INDEX t2i3; | |
| 175 ANALYZE t1; | |
| 176 SELECT idx, stat FROM sqlite_stat1 ORDER BY idx; | |
| 177 } | |
| 178 } {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3} t2i2 {5 2}} | |
| 179 do_test analyze-3.6 { | |
| 180 execsql { | |
| 181 ANALYZE t2; | |
| 182 SELECT idx, stat FROM sqlite_stat1 ORDER BY idx; | |
| 183 } | |
| 184 } {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3} t2i2 {5 2}} | |
| 185 do_test analyze-3.7 { | |
| 186 execsql { | |
| 187 DROP INDEX t2i2; | |
| 188 ANALYZE t2; | |
| 189 SELECT idx, stat FROM sqlite_stat1 ORDER BY idx; | |
| 190 } | |
| 191 } {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3}} | |
| 192 do_test analyze-3.8 { | |
| 193 execsql { | |
| 194 CREATE TABLE t3 AS SELECT a, b, rowid AS c, 'hi' AS d FROM t1; | |
| 195 CREATE INDEX t3i1 ON t3(a); | |
| 196 CREATE INDEX t3i2 ON t3(a,b,c,d); | |
| 197 CREATE INDEX t3i3 ON t3(d,b,c,a); | |
| 198 DROP TABLE t1; | |
| 199 DROP TABLE t2; | |
| 200 SELECT idx, stat FROM sqlite_stat1 ORDER BY idx; | |
| 201 } | |
| 202 } {} | |
| 203 do_test analyze-3.9 { | |
| 204 execsql { | |
| 205 ANALYZE; | |
| 206 SELECT idx, stat FROM sqlite_stat1 ORDER BY idx; | |
| 207 } | |
| 208 } {t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1}} | |
| 209 | |
| 210 do_test analyze-3.10 { | |
| 211 execsql { | |
| 212 CREATE TABLE [silly " name](a, b, c); | |
| 213 CREATE INDEX 'foolish '' name' ON [silly " name](a, b); | |
| 214 CREATE INDEX 'another foolish '' name' ON [silly " name](c); | |
| 215 INSERT INTO [silly " name] VALUES(1, 2, 3); | |
| 216 INSERT INTO [silly " name] VALUES(4, 5, 6); | |
| 217 ANALYZE; | |
| 218 SELECT idx, stat FROM sqlite_stat1 ORDER BY idx; | |
| 219 } | |
| 220 } {{another foolish ' name} {2 1} {foolish ' name} {2 1 1} t3i1 {5 3} t3i2 {5 3
1 1 1} t3i3 {5 5 2 1 1}} | |
| 221 do_test analyze-3.11 { | |
| 222 execsql { | |
| 223 DROP INDEX "foolish ' name"; | |
| 224 SELECT idx, stat FROM sqlite_stat1 ORDER BY idx; | |
| 225 } | |
| 226 } {{another foolish ' name} {2 1} t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1}} | |
| 227 do_test analyze-3.11 { | |
| 228 execsql { | |
| 229 DROP TABLE "silly "" name"; | |
| 230 SELECT idx, stat FROM sqlite_stat1 ORDER BY idx; | |
| 231 } | |
| 232 } {t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1}} | |
| 233 | |
| 234 # Try corrupting the sqlite_stat1 table and make sure the | |
| 235 # database is still able to function. | |
| 236 # | |
| 237 do_test analyze-4.0 { | |
| 238 sqlite3 db2 test.db | |
| 239 db2 eval { | |
| 240 CREATE TABLE t4(x,y,z); | |
| 241 CREATE INDEX t4i1 ON t4(x); | |
| 242 CREATE INDEX t4i2 ON t4(y); | |
| 243 INSERT INTO t4 SELECT a,b,c FROM t3; | |
| 244 } | |
| 245 db2 close | |
| 246 db close | |
| 247 sqlite3 db test.db | |
| 248 execsql { | |
| 249 ANALYZE; | |
| 250 SELECT idx, stat FROM sqlite_stat1 ORDER BY idx; | |
| 251 } | |
| 252 } {t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1} t4i1 {5 3} t4i2 {5 2}} | |
| 253 do_test analyze-4.1 { | |
| 254 execsql { | |
| 255 PRAGMA writable_schema=on; | |
| 256 INSERT INTO sqlite_stat1 VALUES(null,null,null); | |
| 257 PRAGMA writable_schema=off; | |
| 258 } | |
| 259 db close | |
| 260 sqlite3 db test.db | |
| 261 execsql { | |
| 262 SELECT * FROM t4 WHERE x=1234; | |
| 263 } | |
| 264 } {} | |
| 265 do_test analyze-4.2 { | |
| 266 execsql { | |
| 267 PRAGMA writable_schema=on; | |
| 268 DELETE FROM sqlite_stat1; | |
| 269 INSERT INTO sqlite_stat1 VALUES('t4','t4i1','nonsense'); | |
| 270 INSERT INTO sqlite_stat1 VALUES('t4','t4i2','1208973498172387410928731982734
09187234918720394817209384710928374109827172901827349871928741910'); | |
| 271 PRAGMA writable_schema=off; | |
| 272 } | |
| 273 db close | |
| 274 sqlite3 db test.db | |
| 275 execsql { | |
| 276 SELECT * FROM t4 WHERE x=1234; | |
| 277 } | |
| 278 } {} | |
| 279 do_test analyze-4.3 { | |
| 280 execsql { | |
| 281 INSERT INTO sqlite_stat1 VALUES('t4','xyzzy','0 1 2 3'); | |
| 282 } | |
| 283 db close | |
| 284 sqlite3 db test.db | |
| 285 execsql { | |
| 286 SELECT * FROM t4 WHERE x=1234; | |
| 287 } | |
| 288 } {} | |
| 289 | |
| 290 # This test corrupts the database file so it must be the last test | |
| 291 # in the series. | |
| 292 # | |
| 293 do_test analyze-99.1 { | |
| 294 execsql { | |
| 295 PRAGMA writable_schema=on; | |
| 296 UPDATE sqlite_master SET sql='nonsense' WHERE name='sqlite_stat1'; | |
| 297 } | |
| 298 db close | |
| 299 sqlite3 db test.db | |
| 300 catchsql { | |
| 301 ANALYZE | |
| 302 } | |
| 303 } {1 {malformed database schema (sqlite_stat1) - near "nonsense": syntax error}} | |
| 304 | |
| 305 | |
| 306 finish_test | |
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