sl@0: # 2005 July 22
sl@0: #
sl@0: # The author disclaims copyright to this source code.  In place of
sl@0: # a legal notice, here is a blessing:
sl@0: #
sl@0: #    May you do good and not evil.
sl@0: #    May you find forgiveness for yourself and forgive others.
sl@0: #    May you share freely, never taking more than you give.
sl@0: #
sl@0: #***********************************************************************
sl@0: # This file implements regression tests for SQLite library.
sl@0: # This file implements tests for the ANALYZE command.
sl@0: #
sl@0: # $Id: analyze.test,v 1.9 2008/08/11 18:44:58 drh Exp $
sl@0: 
sl@0: set testdir [file dirname $argv0]
sl@0: source $testdir/tester.tcl
sl@0: 
sl@0: # There is nothing to test if ANALYZE is disable for this build.
sl@0: #
sl@0: ifcapable {!analyze} {
sl@0:   finish_test
sl@0:   return
sl@0: }
sl@0: 
sl@0: # Basic sanity checks.
sl@0: #
sl@0: do_test analyze-1.1 {
sl@0:   catchsql {
sl@0:     ANALYZE no_such_table
sl@0:   }
sl@0: } {1 {no such table: no_such_table}}
sl@0: do_test analyze-1.2 {
sl@0:   execsql {
sl@0:     SELECT count(*) FROM sqlite_master WHERE name='sqlite_stat1'
sl@0:   }
sl@0: } {0}
sl@0: do_test analyze-1.3 {
sl@0:   catchsql {
sl@0:     ANALYZE no_such_db.no_such_table
sl@0:   }
sl@0: } {1 {unknown database no_such_db}}
sl@0: do_test analyze-1.4 {
sl@0:   execsql {
sl@0:     SELECT count(*) FROM sqlite_master WHERE name='sqlite_stat1'
sl@0:   }
sl@0: } {0}
sl@0: do_test analyze-1.5.1 {
sl@0:   catchsql {
sl@0:     ANALYZE
sl@0:   }
sl@0: } {0 {}}
sl@0: do_test analyze-1.5.2 {
sl@0:   catchsql {
sl@0:     PRAGMA empty_result_callbacks=1;
sl@0:     ANALYZE
sl@0:   }
sl@0: } {0 {}}
sl@0: do_test analyze-1.6 {
sl@0:   execsql {
sl@0:     SELECT count(*) FROM sqlite_master WHERE name='sqlite_stat1'
sl@0:   }
sl@0: } {1}
sl@0: do_test analyze-1.6.2 {
sl@0:   catchsql {
sl@0:     CREATE INDEX stat1idx ON sqlite_stat1(idx);
sl@0:   }
sl@0: } {1 {table sqlite_stat1 may not be indexed}}
sl@0: do_test analyze-1.6.3 {
sl@0:   catchsql {
sl@0:     CREATE INDEX main.stat1idx ON SQLite_stat1(idx);
sl@0:   }
sl@0: } {1 {table sqlite_stat1 may not be indexed}}
sl@0: do_test analyze-1.7 {
sl@0:   execsql {
sl@0:     SELECT * FROM sqlite_stat1
sl@0:   }
sl@0: } {}
sl@0: do_test analyze-1.8 {
sl@0:   catchsql {
sl@0:     ANALYZE main
sl@0:   }
sl@0: } {0 {}}
sl@0: do_test analyze-1.9 {
sl@0:   execsql {
sl@0:     SELECT * FROM sqlite_stat1
sl@0:   }
sl@0: } {}
sl@0: do_test analyze-1.10 {
sl@0:   catchsql {
sl@0:     CREATE TABLE t1(a,b);
sl@0:     ANALYZE main.t1;
sl@0:   }
sl@0: } {0 {}}
sl@0: do_test analyze-1.11 {
sl@0:   execsql {
sl@0:     SELECT * FROM sqlite_stat1
sl@0:   }
sl@0: } {}
sl@0: do_test analyze-1.12 {
sl@0:   catchsql {
sl@0:     ANALYZE t1;
sl@0:   }
sl@0: } {0 {}}
sl@0: do_test analyze-1.13 {
sl@0:   execsql {
sl@0:     SELECT * FROM sqlite_stat1
sl@0:   }
sl@0: } {}
sl@0: 
sl@0: # Create some indices that can be analyzed.  But do not yet add
sl@0: # data.  Without data in the tables, no analysis is done.
sl@0: #
sl@0: do_test analyze-2.1 {
sl@0:   execsql {
sl@0:     CREATE INDEX t1i1 ON t1(a);
sl@0:     ANALYZE main.t1;
sl@0:     SELECT * FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {}
sl@0: do_test analyze-2.2 {
sl@0:   execsql {
sl@0:     CREATE INDEX t1i2 ON t1(b);
sl@0:     ANALYZE t1;
sl@0:     SELECT * FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {}
sl@0: do_test analyze-2.3 {
sl@0:   execsql {
sl@0:     CREATE INDEX t1i3 ON t1(a,b);
sl@0:     ANALYZE main;
sl@0:     SELECT * FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {}
sl@0: 
sl@0: # Start adding data to the table.  Verify that the analysis
sl@0: # is done correctly.
sl@0: #
sl@0: do_test analyze-3.1 {
sl@0:   execsql {
sl@0:     INSERT INTO t1 VALUES(1,2);
sl@0:     INSERT INTO t1 VALUES(1,3);
sl@0:     ANALYZE main.t1;
sl@0:     SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {t1i1 {2 2} t1i2 {2 1} t1i3 {2 2 1}}
sl@0: do_test analyze-3.2 {
sl@0:   execsql {
sl@0:     INSERT INTO t1 VALUES(1,4);
sl@0:     INSERT INTO t1 VALUES(1,5);
sl@0:     ANALYZE t1;
sl@0:     SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {t1i1 {4 4} t1i2 {4 1} t1i3 {4 4 1}}
sl@0: do_test analyze-3.3 {
sl@0:   execsql {
sl@0:     INSERT INTO t1 VALUES(2,5);
sl@0:     ANALYZE main;
sl@0:     SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1}}
sl@0: do_test analyze-3.4 {
sl@0:   execsql {
sl@0:     CREATE TABLE t2 AS SELECT * FROM t1;
sl@0:     CREATE INDEX t2i1 ON t2(a);
sl@0:     CREATE INDEX t2i2 ON t2(b);
sl@0:     CREATE INDEX t2i3 ON t2(a,b);
sl@0:     ANALYZE;
sl@0:     SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3} t2i2 {5 2} t2i3 {5 3 1}}
sl@0: do_test analyze-3.5 {
sl@0:   execsql {
sl@0:     DROP INDEX t2i3;
sl@0:     ANALYZE t1;
sl@0:     SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3} t2i2 {5 2}}
sl@0: do_test analyze-3.6 {
sl@0:   execsql {
sl@0:     ANALYZE t2;
sl@0:     SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3} t2i2 {5 2}}
sl@0: do_test analyze-3.7 {
sl@0:   execsql {
sl@0:     DROP INDEX t2i2;
sl@0:     ANALYZE t2;
sl@0:     SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {t1i1 {5 3} t1i2 {5 2} t1i3 {5 3 1} t2i1 {5 3}}
sl@0: do_test analyze-3.8 {
sl@0:   execsql {
sl@0:     CREATE TABLE t3 AS SELECT a, b, rowid AS c, 'hi' AS d FROM t1;
sl@0:     CREATE INDEX t3i1 ON t3(a);
sl@0:     CREATE INDEX t3i2 ON t3(a,b,c,d);
sl@0:     CREATE INDEX t3i3 ON t3(d,b,c,a);
sl@0:     DROP TABLE t1;
sl@0:     DROP TABLE t2;
sl@0:     SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {}
sl@0: do_test analyze-3.9 {
sl@0:   execsql {
sl@0:     ANALYZE;
sl@0:     SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1}}
sl@0: 
sl@0: do_test analyze-3.10 {
sl@0:   execsql {
sl@0:     CREATE TABLE [silly " name](a, b, c);
sl@0:     CREATE INDEX 'foolish '' name' ON [silly " name](a, b);
sl@0:     CREATE INDEX 'another foolish '' name' ON [silly " name](c);
sl@0:     INSERT INTO [silly " name] VALUES(1, 2, 3);
sl@0:     INSERT INTO [silly " name] VALUES(4, 5, 6);
sl@0:     ANALYZE;
sl@0:     SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {{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}}
sl@0: do_test analyze-3.11 {
sl@0:   execsql {
sl@0:     DROP INDEX "foolish ' name";
sl@0:     SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {{another foolish ' name} {2 1} t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1}}
sl@0: do_test analyze-3.11 {
sl@0:   execsql {
sl@0:     DROP TABLE "silly "" name";
sl@0:     SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1}}
sl@0: 
sl@0: # Try corrupting the sqlite_stat1 table and make sure the
sl@0: # database is still able to function.
sl@0: #
sl@0: do_test analyze-4.0 {
sl@0:   sqlite3 db2 test.db
sl@0:   db2 eval {
sl@0:     CREATE TABLE t4(x,y,z);
sl@0:     CREATE INDEX t4i1 ON t4(x);
sl@0:     CREATE INDEX t4i2 ON t4(y);
sl@0:     INSERT INTO t4 SELECT a,b,c FROM t3;
sl@0:   }
sl@0:   db2 close
sl@0:   db close
sl@0:   sqlite3 db test.db
sl@0:   execsql {
sl@0:     ANALYZE;
sl@0:     SELECT idx, stat FROM sqlite_stat1 ORDER BY idx;
sl@0:   }
sl@0: } {t3i1 {5 3} t3i2 {5 3 1 1 1} t3i3 {5 5 2 1 1} t4i1 {5 3} t4i2 {5 2}}
sl@0: do_test analyze-4.1 {
sl@0:   execsql {
sl@0:     PRAGMA writable_schema=on;
sl@0:     INSERT INTO sqlite_stat1 VALUES(null,null,null);
sl@0:     PRAGMA writable_schema=off;
sl@0:   }
sl@0:   db close
sl@0:   sqlite3 db test.db
sl@0:   execsql {
sl@0:     SELECT * FROM t4 WHERE x=1234;
sl@0:   }
sl@0: } {}
sl@0: do_test analyze-4.2 {
sl@0:   execsql {
sl@0:     PRAGMA writable_schema=on;
sl@0:     DELETE FROM sqlite_stat1;
sl@0:     INSERT INTO sqlite_stat1 VALUES('t4','t4i1','nonsense');
sl@0:     INSERT INTO sqlite_stat1 VALUES('t4','t4i2','120897349817238741092873198273409187234918720394817209384710928374109827172901827349871928741910');
sl@0:     PRAGMA writable_schema=off;
sl@0:   }
sl@0:   db close
sl@0:   sqlite3 db test.db
sl@0:   execsql {
sl@0:     SELECT * FROM t4 WHERE x=1234;
sl@0:   }
sl@0: } {}
sl@0: do_test analyze-4.3 {
sl@0:   execsql {
sl@0:     INSERT INTO sqlite_stat1 VALUES('t4','xyzzy','0 1 2 3');
sl@0:   }
sl@0:   db close
sl@0:   sqlite3 db test.db
sl@0:   execsql {
sl@0:     SELECT * FROM t4 WHERE x=1234;
sl@0:   }
sl@0: } {}
sl@0: 
sl@0: # This test corrupts the database file so it must be the last test
sl@0: # in the series.
sl@0: #
sl@0: do_test analyze-99.1 {
sl@0:   execsql {
sl@0:     PRAGMA writable_schema=on;
sl@0:     UPDATE sqlite_master SET sql='nonsense' WHERE name='sqlite_stat1';
sl@0:   }
sl@0:   db close
sl@0:   sqlite3 db test.db
sl@0:   catchsql {
sl@0:     ANALYZE
sl@0:   }
sl@0: } {1 {malformed database schema (sqlite_stat1) - near "nonsense": syntax error}}
sl@0: 
sl@0: 
sl@0: finish_test