# 2002 March 6

 #

 # The author disclaims copyright to this source code.  In place of

 # a legal notice, here is a blessing:

 #

 #    May you do good and not evil.

 #    May you find forgiveness for yourself and forgive others.

 #    May you share freely, never taking more than you give.

 #

 #***********************************************************************

 # This file implements regression tests for SQLite library.

 #

 # This file implements tests for the PRAGMA command.

 #

 # $Id: pragma.test,v 1.66 2008/09/02 00:52:52 drh Exp $

 set testdir [file dirname $argv0]

 source $testdir/tester.tcl

 # Test organization:

 #

 # pragma-1.*: Test cache_size, default_cache_size and synchronous on main db.

 # pragma-2.*: Test synchronous on attached db.

 # pragma-3.*: Test detection of table/index inconsistency by integrity_check.

 # pragma-4.*: Test cache_size and default_cache_size on attached db.

 # pragma-5.*: Test that pragma synchronous may not be used inside of a

 #             transaction.

 # pragma-6.*: Test schema-query pragmas.

 # pragma-7.*: Miscellaneous tests.

 # pragma-8.*: Test user_version and schema_version pragmas.

 # pragma-9.*: Test temp_store and temp_store_directory.

 # pragma-10.*: Test the count_changes pragma in the presence of triggers.

 # pragma-11.*: Test the collation_list pragma.

 # pragma-14.*: Test the page_count pragma.

 # pragma-15.*: Test that the value set using the cache_size pragma is not

 #              reset when the schema is reloaded.

 #

 ifcapable !pragma {

   finish_test

   return

 }

 # Delete the preexisting database to avoid the special setup

 # that the "all.test" script does.

 #

 db close

 file delete test.db test.db-journal

 file delete test3.db test3.db-journal

 sqlite3 db test.db; set DB [sqlite3_connection_pointer db]

 ifcapable pager_pragmas {

 set DFLT_CACHE_SZ [db one {PRAGMA default_cache_size}]

 set TEMP_CACHE_SZ [db one {PRAGMA temp.default_cache_size}]

 do_test pragma-1.1 {

   execsql {

     PRAGMA cache_size;

     PRAGMA default_cache_size;

     PRAGMA synchronous;

   }

 } [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ 2]

 do_test pragma-1.2 {

   execsql {

     PRAGMA synchronous=OFF;

     PRAGMA cache_size=1234;

     PRAGMA cache_size;

     PRAGMA default_cache_size;

     PRAGMA synchronous;

   }

 } [list 1234 $DFLT_CACHE_SZ 0]

 do_test pragma-1.3 {

   db close

   sqlite3 db test.db

   execsql {

     PRAGMA cache_size;

     PRAGMA default_cache_size;

     PRAGMA synchronous;

   }

 } [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ 2]

 do_test pragma-1.4 {

   execsql {

     PRAGMA synchronous=OFF;

     PRAGMA cache_size;

     PRAGMA default_cache_size;

     PRAGMA synchronous;

   }

 } [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ 0]

 do_test pragma-1.5 {

   execsql {

     PRAGMA cache_size=4321;

     PRAGMA cache_size;

     PRAGMA default_cache_size;

     PRAGMA synchronous;

   }

 } [list 4321 $DFLT_CACHE_SZ 0]

 do_test pragma-1.6 {

   execsql {

     PRAGMA synchronous=ON;

     PRAGMA cache_size;

     PRAGMA default_cache_size;

     PRAGMA synchronous;

   }

 } [list 4321 $DFLT_CACHE_SZ 1]

 do_test pragma-1.7 {

   db close

   sqlite3 db test.db

   execsql {

     PRAGMA cache_size;

     PRAGMA default_cache_size;

     PRAGMA synchronous;

   }

 } [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ 2]

 do_test pragma-1.8 {

   execsql {

     PRAGMA default_cache_size=123;

     PRAGMA cache_size;

     PRAGMA default_cache_size;

     PRAGMA synchronous;

   }

 } {123 123 2}

 do_test pragma-1.9.1 {

   db close

   sqlite3 db test.db; set ::DB [sqlite3_connection_pointer db]

   execsql {

     PRAGMA cache_size;

     PRAGMA default_cache_size;

     PRAGMA synchronous;

   }

 } {123 123 2}

 ifcapable vacuum {

   do_test pragma-1.9.2 {

     execsql {

       VACUUM;

       PRAGMA cache_size;

       PRAGMA default_cache_size;

       PRAGMA synchronous;

     }

   } {123 123 2}

 }

 do_test pragma-1.10 {

   execsql {

     PRAGMA synchronous=NORMAL;

     PRAGMA cache_size;

     PRAGMA default_cache_size;

     PRAGMA synchronous;

   }

 } {123 123 1}

 do_test pragma-1.11 {

   execsql {

     PRAGMA synchronous=FULL;

     PRAGMA cache_size;

     PRAGMA default_cache_size;

     PRAGMA synchronous;

   }

 } {123 123 2}

 do_test pragma-1.12 {

   db close

   sqlite3 db test.db; set ::DB [sqlite3_connection_pointer db]

   execsql {

     PRAGMA cache_size;

     PRAGMA default_cache_size;

     PRAGMA synchronous;

   }

 } {123 123 2}

 # Make sure the pragma handler understands numeric values in addition

 # to keywords like "off" and "full".

 #

 do_test pragma-1.13 {

   execsql {

     PRAGMA synchronous=0;

     PRAGMA synchronous;

   }

 } {0}

 do_test pragma-1.14 {

   execsql {

     PRAGMA synchronous=2;

     PRAGMA synchronous;

   }

 } {2}

 } ;# ifcapable pager_pragmas

 # Test turning "flag" pragmas on and off.

 #

 ifcapable debug {

   # Pragma "vdbe_listing" is only available if compiled with SQLITE_DEBUG

   #

   do_test pragma-1.15 {

     execsql {

       PRAGMA vdbe_listing=YES;

       PRAGMA vdbe_listing;

     }

   } {1}

   do_test pragma-1.16 {

     execsql {

       PRAGMA vdbe_listing=NO;

       PRAGMA vdbe_listing;

     }

   } {0}

 }

 do_test pragma-1.17 {

   execsql {

     PRAGMA parser_trace=ON;

     PRAGMA parser_trace=OFF;

   }

 } {}

 do_test pragma-1.18 {

   execsql {

     PRAGMA bogus = -1234;  -- Parsing of negative values

   }

 } {}

 # Test modifying the safety_level of an attached database.

 ifcapable pager_pragmas&&attach {

   do_test pragma-2.1 {

     file delete -force test2.db

     file delete -force test2.db-journal

     execsql {

       ATTACH 'test2.db' AS aux;

     } 

   } {}

   do_test pragma-2.2 {

     execsql {

       pragma aux.synchronous;

     } 

   } {2}

   do_test pragma-2.3 {

     execsql {

       pragma aux.synchronous = OFF;

       pragma aux.synchronous;

       pragma synchronous;

     } 

   } {0 2}

   do_test pragma-2.4 {

     execsql {

       pragma aux.synchronous = ON;

       pragma synchronous;

       pragma aux.synchronous;

     } 

   } {2 1}

 } ;# ifcapable pager_pragmas

 # Construct a corrupted index and make sure the integrity_check

 # pragma finds it.

 #

 # These tests won't work if the database is encrypted

 #

 do_test pragma-3.1 {

   db close

   file delete -force test.db test.db-journal

   sqlite3 db test.db

   execsql {

     PRAGMA auto_vacuum=OFF;

     BEGIN;

     CREATE TABLE t2(a,b,c);

     CREATE INDEX i2 ON t2(a);

     INSERT INTO t2 VALUES(11,2,3);

     INSERT INTO t2 VALUES(22,3,4);

     COMMIT;

     SELECT rowid, * from t2;

   }

 } {1 11 2 3 2 22 3 4}

 ifcapable attach {

   if {![sqlite3 -has-codec] && $sqlite_options(integrityck)} {

     do_test pragma-3.2 {

       db eval {SELECT rootpage FROM sqlite_master WHERE name='i2'} break

       set pgsz [db eval {PRAGMA page_size}]

       # overwrite the header on the rootpage of the index in order to

       # make the index appear to be empty.

       #

       set offset [expr {$pgsz*($rootpage-1)}]

       hexio_write test.db $offset 0a00000000040000000000

       db close

       sqlite3 db test.db

       execsql {PRAGMA integrity_check}

     } {{rowid 1 missing from index i2} {rowid 2 missing from index i2} {wrong # of entries in index i2}}

     do_test pragma-3.3 {

       execsql {PRAGMA integrity_check=1}

     } {{rowid 1 missing from index i2}}

     do_test pragma-3.4 {

       execsql {

         ATTACH DATABASE 'test.db' AS t2;

         PRAGMA integrity_check

       }

     } {{rowid 1 missing from index i2} {rowid 2 missing from index i2} {wrong # of entries in index i2} {rowid 1 missing from index i2} {rowid 2 missing from index i2} {wrong # of entries in index i2}}

     do_test pragma-3.5 {

       execsql {

         PRAGMA integrity_check=4

       }

     } {{rowid 1 missing from index i2} {rowid 2 missing from index i2} {wrong # of entries in index i2} {rowid 1 missing from index i2}}

     do_test pragma-3.6 {

       execsql {

         PRAGMA integrity_check=xyz

       }

     } {{rowid 1 missing from index i2} {rowid 2 missing from index i2} {wrong # of entries in index i2} {rowid 1 missing from index i2} {rowid 2 missing from index i2} {wrong # of entries in index i2}}

     do_test pragma-3.7 {

       execsql {

         PRAGMA integrity_check=0

       }

     } {{rowid 1 missing from index i2} {rowid 2 missing from index i2} {wrong # of entries in index i2} {rowid 1 missing from index i2} {rowid 2 missing from index i2} {wrong # of entries in index i2}}

     # Add additional corruption by appending unused pages to the end of

     # the database file testerr.db

     #

     do_test pragma-3.8 {

       execsql {DETACH t2}

       file delete -force testerr.db testerr.db-journal

       set out [open testerr.db w]

       fconfigure $out -translation binary

       set in [open test.db r]

       fconfigure $in -translation binary

       puts -nonewline $out [read $in]

       seek $in 0

       puts -nonewline $out [read $in]

       close $in

       close $out

       execsql {REINDEX t2}

       execsql {PRAGMA integrity_check}

     } {ok}

     do_test pragma-3.8.1 {

       execsql {PRAGMA quick_check}

     } {ok}

     do_test pragma-3.9 {

       execsql {

         ATTACH 'testerr.db' AS t2;

         PRAGMA integrity_check

       }

     } {{*** in database t2 ***

 Page 4 is never used

 Page 5 is never used

 Page 6 is never used} {rowid 1 missing from index i2} {rowid 2 missing from index i2} {wrong # of entries in index i2}}

     do_test pragma-3.10 {

       execsql {

         PRAGMA integrity_check=1

       }

     } {{*** in database t2 ***

 Page 4 is never used}}

     do_test pragma-3.11 {

       execsql {

         PRAGMA integrity_check=5

       }

     } {{*** in database t2 ***

 Page 4 is never used

 Page 5 is never used

 Page 6 is never used} {rowid 1 missing from index i2} {rowid 2 missing from index i2}}

     do_test pragma-3.12 {

       execsql {

         PRAGMA integrity_check=4

       }

     } {{*** in database t2 ***

 Page 4 is never used

 Page 5 is never used

 Page 6 is never used} {rowid 1 missing from index i2}}

     do_test pragma-3.13 {

       execsql {

         PRAGMA integrity_check=3

       }

     } {{*** in database t2 ***

 Page 4 is never used

 Page 5 is never used

 Page 6 is never used}}

     do_test pragma-3.14 {

       execsql {

         PRAGMA integrity_check(2)

       }

     } {{*** in database t2 ***

 Page 4 is never used

 Page 5 is never used}}

     do_test pragma-3.15 {

       execsql {

         ATTACH 'testerr.db' AS t3;

         PRAGMA integrity_check

       }

     } {{*** in database t2 ***

 Page 4 is never used

 Page 5 is never used

 Page 6 is never used} {rowid 1 missing from index i2} {rowid 2 missing from index i2} {wrong # of entries in index i2} {*** in database t3 ***

 Page 4 is never used

 Page 5 is never used

 Page 6 is never used} {rowid 1 missing from index i2} {rowid 2 missing from index i2} {wrong # of entries in index i2}}

     do_test pragma-3.16 {

       execsql {

         PRAGMA integrity_check(10)

       }

     } {{*** in database t2 ***

 Page 4 is never used

 Page 5 is never used

 Page 6 is never used} {rowid 1 missing from index i2} {rowid 2 missing from index i2} {wrong # of entries in index i2} {*** in database t3 ***

 Page 4 is never used

 Page 5 is never used

 Page 6 is never used} {rowid 1 missing from index i2}}

     do_test pragma-3.17 {

       execsql {

         PRAGMA integrity_check=8

       }

     } {{*** in database t2 ***

 Page 4 is never used

 Page 5 is never used

 Page 6 is never used} {rowid 1 missing from index i2} {rowid 2 missing from index i2} {wrong # of entries in index i2} {*** in database t3 ***

 Page 4 is never used

 Page 5 is never used}}

     do_test pragma-3.18 {

       execsql {

         PRAGMA integrity_check=4

       }

     } {{*** in database t2 ***

 Page 4 is never used

 Page 5 is never used

 Page 6 is never used} {rowid 1 missing from index i2}}

   }

   do_test pragma-3.99 {

     catchsql {DETACH t3}

     catchsql {DETACH t2}

     file delete -force testerr.db testerr.db-journal

     catchsql {DROP INDEX i2}

   } {0 {}}

 }

 # Test modifying the cache_size of an attached database.

 ifcapable pager_pragmas&&attach {

 do_test pragma-4.1 {

   execsql {

     ATTACH 'test2.db' AS aux;

     pragma aux.cache_size;

     pragma aux.default_cache_size;

   } 

 } [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ]

 do_test pragma-4.2 {

   execsql {

     pragma aux.cache_size = 50;

     pragma aux.cache_size;

     pragma aux.default_cache_size;

   } 

 } [list 50 $DFLT_CACHE_SZ]

 do_test pragma-4.3 {

   execsql {

     pragma aux.default_cache_size = 456;

     pragma aux.cache_size;

     pragma aux.default_cache_size;

   } 

 } {456 456}

 do_test pragma-4.4 {

   execsql {

     pragma cache_size;

     pragma default_cache_size;

   } 

 } [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ]

 do_test pragma-4.5 {

   execsql {

     DETACH aux;

     ATTACH 'test3.db' AS aux;

     pragma aux.cache_size;

     pragma aux.default_cache_size;

   } 

 } [list $DFLT_CACHE_SZ $DFLT_CACHE_SZ]

 do_test pragma-4.6 {

   execsql {

     DETACH aux;

     ATTACH 'test2.db' AS aux;

     pragma aux.cache_size;

     pragma aux.default_cache_size;

   } 

 } {456 456}

 } ;# ifcapable pager_pragmas

 # Test that modifying the sync-level in the middle of a transaction is

 # disallowed.

 ifcapable pager_pragmas {

 do_test pragma-5.0 {

   execsql {

     pragma synchronous;

   } 

 } {2}

 do_test pragma-5.1 {

   catchsql {

     BEGIN;

     pragma synchronous = OFF;

   } 

 } {1 {Safety level may not be changed inside a transaction}}

 do_test pragma-5.2 {

   execsql {

     pragma synchronous;

   } 

 } {2}

 catchsql {COMMIT;}

 } ;# ifcapable pager_pragmas

 # Test schema-query pragmas

 #

 ifcapable schema_pragmas {

 ifcapable tempdb&&attach {

   do_test pragma-6.1 {

     set res {}

     execsql {SELECT * FROM sqlite_temp_master}

     foreach {idx name file} [execsql {pragma database_list}] {

       lappend res $idx $name

     }

     set res

   } {0 main 1 temp 2 aux}

 }

 do_test pragma-6.2 {

   execsql {

     pragma table_info(t2)

   }

 } {0 a {} 0 {} 0 1 b {} 0 {} 0 2 c {} 0 {} 0}

 db nullvalue <<NULL>>

 do_test pragma-6.2.2 {

   execsql {

     CREATE TABLE t5(

       a TEXT DEFAULT CURRENT_TIMESTAMP, 

       b DEFAULT (5+3),

       c TEXT,

       d INTEGER DEFAULT NULL,

       e TEXT DEFAULT ''

     );

     PRAGMA table_info(t5);

   }

 } {0 a TEXT 0 CURRENT_TIMESTAMP 0 1 b {} 0 5+3 0 2 c TEXT 0 <<NULL>> 0 3 d INTEGER 0 NULL 0 4 e TEXT 0 '' 0}

 db nullvalue {}

 ifcapable {foreignkey} {

   do_test pragma-6.3 {

     execsql {

       CREATE TABLE t3(a int references t2(b), b UNIQUE);

       pragma foreign_key_list(t3);

     }

   } {0 0 t2 a b}

   do_test pragma-6.4 {

     execsql {

       pragma index_list(t3);

     }

   } {0 sqlite_autoindex_t3_1 1}

 }

 ifcapable {!foreignkey} {

   execsql {CREATE TABLE t3(a,b UNIQUE)}

 }

 do_test pragma-6.5 {

   execsql {

     CREATE INDEX t3i1 ON t3(a,b);

     pragma index_info(t3i1);

   }

 } {0 0 a 1 1 b}

 ifcapable tempdb {

   # Test for ticket #3320. When a temp table of the same name exists, make

   # sure the schema of the main table can still be queried using 

   # "pragma table_info":

   do_test pragma-6.6.1 {

     execsql {

       CREATE TABLE trial(col_main);

       CREATE TEMP TABLE trial(col_temp);

     }

   } {}

   do_test pragma-6.6.2 {

     execsql {

       PRAGMA table_info(trial);

     }

   } {0 col_temp {} 0 {} 0}

   do_test pragma-6.6.3 {

     execsql {

       PRAGMA temp.table_info(trial);

     }

   } {0 col_temp {} 0 {} 0}

   do_test pragma-6.6.4 {

     execsql {

       PRAGMA main.table_info(trial);

     }

   } {0 col_main {} 0 {} 0}

 }

 } ;# ifcapable schema_pragmas

 # Miscellaneous tests

 #

 ifcapable schema_pragmas {

 do_test pragma-7.1 {

   # Make sure a pragma knows to read the schema if it needs to

   db close

   sqlite3 db test.db

   execsql {

     pragma index_list(t3);

   }

 } {0 t3i1 0 1 sqlite_autoindex_t3_1 1}

 } ;# ifcapable schema_pragmas

 ifcapable {utf16} {

   do_test pragma-7.2 {

     db close

     sqlite3 db test.db

     catchsql {

       pragma encoding=bogus;

     }

   } {1 {unsupported encoding: bogus}}

 }

 ifcapable tempdb {

   do_test pragma-7.3 {

     db close

     sqlite3 db test.db

     execsql {

       pragma lock_status;

     }

   } {main unlocked temp closed}

 } else {

   do_test pragma-7.3 {

     db close

     sqlite3 db test.db

     execsql {

       pragma lock_status;

     }

   } {main unlocked}

 }

 #----------------------------------------------------------------------

 # Test cases pragma-8.* test the "PRAGMA schema_version" and "PRAGMA

 # user_version" statements.

 #

 # pragma-8.1: PRAGMA schema_version

 # pragma-8.2: PRAGMA user_version

 #

 ifcapable schema_version {

 # First check that we can set the schema version and then retrieve the

 # same value.

 do_test pragma-8.1.1 {

   execsql {

     PRAGMA schema_version = 105;

   }

 } {}

 do_test pragma-8.1.2 {

   execsql2 {

     PRAGMA schema_version;

   }

 } {schema_version 105}

 do_test pragma-8.1.3 {

   execsql {

     PRAGMA schema_version = 106;

   }

 } {}

 do_test pragma-8.1.4 {

   execsql {

     PRAGMA schema_version;

   }

 } 106

 # Check that creating a table modifies the schema-version (this is really

 # to verify that the value being read is in fact the schema version).

 do_test pragma-8.1.5 {

   execsql {

     CREATE TABLE t4(a, b, c);

     INSERT INTO t4 VALUES(1, 2, 3);

     SELECT * FROM t4;

   }

 } {1 2 3}

 do_test pragma-8.1.6 {

   execsql {

     PRAGMA schema_version;

   }

 } 107

 # Now open a second connection to the database. Ensure that changing the

 # schema-version using the first connection forces the second connection

 # to reload the schema. This has to be done using the C-API test functions,

 # because the TCL API accounts for SCHEMA_ERROR and retries the query.

 do_test pragma-8.1.7 {

   sqlite3 db2 test.db; set ::DB2 [sqlite3_connection_pointer db2]

   execsql {

     SELECT * FROM t4;

   } db2

 } {1 2 3}

 do_test pragma-8.1.8 {

   execsql {

     PRAGMA schema_version = 108;

   }

 } {}

 do_test pragma-8.1.9 {

   set ::STMT [sqlite3_prepare $::DB2 "SELECT * FROM t4" -1 DUMMY]

   sqlite3_step $::STMT

 } SQLITE_ERROR

 do_test pragma-8.1.10 {

   sqlite3_finalize $::STMT

 } SQLITE_SCHEMA

 # Make sure the schema-version can be manipulated in an attached database.

 file delete -force test2.db

 file delete -force test2.db-journal

 ifcapable attach {

   do_test pragma-8.1.11 {

     execsql {

       ATTACH 'test2.db' AS aux;

       CREATE TABLE aux.t1(a, b, c);

       PRAGMA aux.schema_version = 205;

     }

   } {}

   do_test pragma-8.1.12 {

     execsql {

       PRAGMA aux.schema_version;

     }

   } 205

 }

 do_test pragma-8.1.13 {

   execsql {

     PRAGMA schema_version;

   }

 } 108

 # And check that modifying the schema-version in an attached database

 # forces the second connection to reload the schema.

 ifcapable attach {

   do_test pragma-8.1.14 {

     sqlite3 db2 test.db; set ::DB2 [sqlite3_connection_pointer db2]

     execsql {

       ATTACH 'test2.db' AS aux;

       SELECT * FROM aux.t1;

     } db2

   } {}

   do_test pragma-8.1.15 {

     execsql {

       PRAGMA aux.schema_version = 206;

     }

   } {}

   do_test pragma-8.1.16 {

     set ::STMT [sqlite3_prepare $::DB2 "SELECT * FROM aux.t1" -1 DUMMY]

     sqlite3_step $::STMT

   } SQLITE_ERROR

   do_test pragma-8.1.17 {

     sqlite3_finalize $::STMT

   } SQLITE_SCHEMA

   do_test pragma-8.1.18 {

     db2 close

   } {}

 }

 # Now test that the user-version can be read and written (and that we aren't

 # accidentally manipulating the schema-version instead).

 do_test pragma-8.2.1 {

   execsql2 {

     PRAGMA user_version;

   }

 } {user_version 0}

 do_test pragma-8.2.2 {

   execsql {

     PRAGMA user_version = 2;

   }

 } {}

 do_test pragma-8.2.3.1 {

   execsql2 {

     PRAGMA user_version;

   }

 } {user_version 2}

 do_test pragma-8.2.3.2 {

   db close

   sqlite3 db test.db

   execsql {

     PRAGMA user_version;

   }

 } {2}

 do_test pragma-8.2.4.1 {

   execsql {

     PRAGMA schema_version;

   }

 } {108}

 ifcapable vacuum {

   do_test pragma-8.2.4.2 {

     execsql {

       VACUUM;

       PRAGMA user_version;

     }

   } {2}

   do_test pragma-8.2.4.3 {

     execsql {

       PRAGMA schema_version;

     }

   } {109}

 }

 ifcapable attach {

   db eval {ATTACH 'test2.db' AS aux}

   # Check that the user-version in the auxilary database can be manipulated (

   # and that we aren't accidentally manipulating the same in the main db).

   do_test pragma-8.2.5 {

     execsql {

       PRAGMA aux.user_version;

     }

   } {0}

   do_test pragma-8.2.6 {

     execsql {

       PRAGMA aux.user_version = 3;

     }

   } {}

   do_test pragma-8.2.7 {

     execsql {

       PRAGMA aux.user_version;

     }

   } {3}

   do_test pragma-8.2.8 {

     execsql {

       PRAGMA main.user_version;

     }

   } {2}

   # Now check that a ROLLBACK resets the user-version if it has been modified

   # within a transaction.

   do_test pragma-8.2.9 {

     execsql {

       BEGIN;

       PRAGMA aux.user_version = 10;

       PRAGMA user_version = 11;

     }

   } {}

   do_test pragma-8.2.10 {

     execsql {

       PRAGMA aux.user_version;

     }

   } {10}

   do_test pragma-8.2.11 {

     execsql {

       PRAGMA main.user_version;

     }

   } {11}

   do_test pragma-8.2.12 {

     execsql {

       ROLLBACK;

       PRAGMA aux.user_version;

     }

   } {3}

   do_test pragma-8.2.13 {

     execsql {

       PRAGMA main.user_version;

     }

   } {2}

 }

 # Try a negative value for the user-version

 do_test pragma-8.2.14 {

   execsql {

     PRAGMA user_version = -450;

   }

 } {}

 do_test pragma-8.2.15 {

   execsql {

     PRAGMA user_version;

   }

 } {-450}

 } ; # ifcapable schema_version

 # Check to see if TEMP_STORE is memory or disk.  Return strings

 # "memory" or "disk" as appropriate.

 #

 proc check_temp_store {} {

   db eval {CREATE TEMP TABLE IF NOT EXISTS a(b)}

   db eval {PRAGMA database_list} {

     if {$name=="temp"} {

       set bt [btree_from_db db 1]

       if {[btree_ismemdb $bt]} {

         return "memory"

       }

       return "disk"

     }

   }

   return "unknown"

 }

 # Test temp_store and temp_store_directory pragmas

 #

 ifcapable pager_pragmas {

 do_test pragma-9.1 {

   db close

   sqlite3 db test.db

   execsql {

     PRAGMA temp_store;

   }

 } {0}

 if {$TEMP_STORE<=1} {

   do_test pragma-9.1.1 {

     check_temp_store

   } {disk}

 } else {

   do_test pragma-9.1.1 {

     check_temp_store

   } {memory}

 }

 do_test pragma-9.2 {

   db close

   sqlite3 db test.db

   execsql {

     PRAGMA temp_store=file;

     PRAGMA temp_store;

   }

 } {1}

 if {$TEMP_STORE==3} {

   # When TEMP_STORE is 3, always use memory regardless of pragma settings.

   do_test pragma-9.2.1 {

     check_temp_store

   } {memory}

 } else {

   do_test pragma-9.2.1 {

     check_temp_store

   } {disk}

 }

 do_test pragma-9.3 {

   db close

   sqlite3 db test.db

   execsql {

     PRAGMA temp_store=memory;

     PRAGMA temp_store;

   }

 } {2}

 if {$TEMP_STORE==0} {

   # When TEMP_STORE is 0, always use the disk regardless of pragma settings.

   do_test pragma-9.3.1 {

     check_temp_store

   } {disk}

 } else {

   do_test pragma-9.3.1 {

     check_temp_store

   } {memory}

 }

 do_test pragma-9.4 {

   execsql {

     PRAGMA temp_store_directory;

   }

 } {}

 ifcapable wsd {

   do_test pragma-9.5 {

     set pwd [string map {' ''} [file nativename [pwd]]]

     execsql "

       PRAGMA temp_store_directory='$pwd';

     "

   } {}

   do_test pragma-9.6 {

     execsql { 

       PRAGMA temp_store_directory;

     }

   } [list [file nativename [pwd]]]

   do_test pragma-9.7 {

     catchsql { 

       PRAGMA temp_store_directory='/NON/EXISTENT/PATH/FOOBAR';

     }

   } {1 {not a writable directory}}

   do_test pragma-9.8 {

     execsql { 

       PRAGMA temp_store_directory='';

     }

   } {}

   if {![info exists TEMP_STORE] || $TEMP_STORE<=1} {

     ifcapable tempdb {

       do_test pragma-9.9 {

         execsql { 

           PRAGMA temp_store_directory;

           PRAGMA temp_store=FILE;

           CREATE TEMP TABLE temp_store_directory_test(a integer);

           INSERT INTO temp_store_directory_test values (2);

           SELECT * FROM temp_store_directory_test;

         }

       } {2}

       do_test pragma-9.10 {

         catchsql "

           PRAGMA temp_store_directory='$pwd';

           SELECT * FROM temp_store_directory_test;

         "

       } {1 {no such table: temp_store_directory_test}}

     }

   }

 }

 do_test pragma-9.11 {

   execsql {

     PRAGMA temp_store = 0;

     PRAGMA temp_store;

   }

 } {0}

 do_test pragma-9.12 {

   execsql {

     PRAGMA temp_store = 1;

     PRAGMA temp_store;

   }

 } {1}

 do_test pragma-9.13 {

   execsql {

     PRAGMA temp_store = 2;

     PRAGMA temp_store;

   }

 } {2}

 do_test pragma-9.14 {

   execsql {

     PRAGMA temp_store = 3;

     PRAGMA temp_store;

   }

 } {0}

 do_test pragma-9.15 {

   catchsql {

     BEGIN EXCLUSIVE;

     CREATE TEMP TABLE temp_table(t);

     INSERT INTO temp_table VALUES('valuable data');

     PRAGMA temp_store = 1;

   }

 } {1 {temporary storage cannot be changed from within a transaction}}

 do_test pragma-9.16 {

   execsql {

     SELECT * FROM temp_table;

     COMMIT;

   }

 } {{valuable data}}

 do_test pragma-9.17 {

   execsql {

     INSERT INTO temp_table VALUES('valuable data II');

     SELECT * FROM temp_table;

   }

 } {{valuable data} {valuable data II}}

 do_test pragma-9.18 {

   set rc [catch {

     db eval {SELECT t FROM temp_table} {

       execsql {pragma temp_store = 1}

     }

   } msg]

   list $rc $msg

 } {1 {temporary storage cannot be changed from within a transaction}}

 } ;# ifcapable pager_pragmas

 ifcapable trigger {

 do_test pragma-10.0 {

   catchsql {

     DROP TABLE main.t1;

   }

   execsql {

     PRAGMA count_changes = 1;

     CREATE TABLE t1(a PRIMARY KEY);

     CREATE TABLE t1_mirror(a);

     CREATE TABLE t1_mirror2(a);

     CREATE TRIGGER t1_bi BEFORE INSERT ON t1 BEGIN 

       INSERT INTO t1_mirror VALUES(new.a);

     END;

     CREATE TRIGGER t1_ai AFTER INSERT ON t1 BEGIN 

       INSERT INTO t1_mirror2 VALUES(new.a);

     END;

     CREATE TRIGGER t1_bu BEFORE UPDATE ON t1 BEGIN 

       UPDATE t1_mirror SET a = new.a WHERE a = old.a;

     END;

     CREATE TRIGGER t1_au AFTER UPDATE ON t1 BEGIN 

       UPDATE t1_mirror2 SET a = new.a WHERE a = old.a;

     END;

     CREATE TRIGGER t1_bd BEFORE DELETE ON t1 BEGIN 

       DELETE FROM t1_mirror WHERE a = old.a;

     END;

     CREATE TRIGGER t1_ad AFTER DELETE ON t1 BEGIN 

       DELETE FROM t1_mirror2 WHERE a = old.a;

     END;

   }

 } {}

 do_test pragma-10.1 {

   execsql {

     INSERT INTO t1 VALUES(randstr(10,10));

   }

 } {1}

 do_test pragma-10.2 {

   execsql {

     UPDATE t1 SET a = randstr(10,10);

   }

 } {1}

 do_test pragma-10.3 {

   execsql {

     DELETE FROM t1;

   }

 } {1}

 } ;# ifcapable trigger

 ifcapable schema_pragmas {

   do_test pragma-11.1 {

     execsql2 {

       pragma collation_list;

     }

   } {seq 0 name NOCASE seq 1 name RTRIM seq 2 name BINARY}

   do_test pragma-11.2 {

     db collate New_Collation blah...

     execsql {

       pragma collation_list;

     }

   } {0 New_Collation 1 NOCASE 2 RTRIM 3 BINARY}

 }

 ifcapable schema_pragmas&&tempdb {

   do_test pragma-12.1 {

     sqlite3 db2 test.db

     execsql {

       PRAGMA temp.table_info('abc');

     } db2

   } {}

   db2 close

   do_test pragma-12.2 {

     sqlite3 db2 test.db

     execsql {

       PRAGMA temp.default_cache_size = 200;

       PRAGMA temp.default_cache_size;

     } db2

   } {200}

   db2 close

   do_test pragma-12.3 {

     sqlite3 db2 test.db

     execsql {

       PRAGMA temp.cache_size = 400;

       PRAGMA temp.cache_size;

     } db2

   } {400}

   db2 close

 }

 ifcapable bloblit {

 do_test pragma-13.1 {

   execsql {

     DROP TABLE IF EXISTS t4;

     PRAGMA vdbe_trace=on;

     PRAGMA vdbe_listing=on;

     PRAGMA sql_trace=on;

     CREATE TABLE t4(a INTEGER PRIMARY KEY,b);

     INSERT INTO t4(b) VALUES(x'0123456789abcdef0123456789abcdef0123456789');

     INSERT INTO t4(b) VALUES(randstr(30,30));

     INSERT INTO t4(b) VALUES(1.23456);

     INSERT INTO t4(b) VALUES(NULL);

     INSERT INTO t4(b) VALUES(0);

     INSERT INTO t4(b) SELECT b||b||b||b FROM t4;

     SELECT * FROM t4;

   }

   execsql {

     PRAGMA vdbe_trace=off;

     PRAGMA vdbe_listing=off;

     PRAGMA sql_trace=off;

   }

 } {}

 } ;# ifcapable bloblit 

 ifcapable pager_pragmas {

   db close

   file delete -force test.db

   sqlite3 db test.db

   do_test pragma-14.1 {

     execsql { pragma auto_vacuum = 0 }

     execsql { pragma page_count }

   } {0}

   do_test pragma-14.2 {

     execsql { 

       CREATE TABLE abc(a, b, c);

       PRAGMA page_count;

     }

   } {2}

   do_test pragma-14.3 {

     execsql { 

       BEGIN;

       CREATE TABLE def(a, b, c);

       PRAGMA page_count;

     }

   } {3}

   do_test pragma-14.4 {

     set page_size [db one {pragma page_size}]

     expr [file size test.db] / $page_size

   } {2}

   do_test pragma-14.5 {

     execsql {

       ROLLBACK;

       PRAGMA page_count;

     }

   } {2}

   do_test pragma-14.6 {

     file delete -force test2.db

     sqlite3 db2 test2.db

     execsql {

       PRAGMA auto_vacuum = 0;

       CREATE TABLE t1(a, b, c);

       CREATE TABLE t2(a, b, c);

       CREATE TABLE t3(a, b, c);

       CREATE TABLE t4(a, b, c);

     } db2

     db2 close

     execsql {

       ATTACH 'test2.db' AS aux;

       PRAGMA aux.page_count;

     } 

   } {5}

 }

 # Test that the value set using the cache_size pragma is not reset when the

 # schema is reloaded.

 #

 ifcapable pager_pragmas {

   db close

   sqlite3 db test.db

   do_test pragma-15.1 {

     execsql {

       PRAGMA cache_size=59;

       PRAGMA cache_size;

     }

   } {59}

   do_test pragma-15.2 {

     sqlite3 db2 test.db

     execsql {

       CREATE TABLE newtable(a, b, c);

     } db2

     db2 close

   } {}

   do_test pragma-15.3 {

     # Evaluating this statement will cause the schema to be reloaded (because

     # the schema was changed by another connection in pragma-15.2). At one

     # point there was a bug that reset the cache_size to its default value

     # when this happened. 

     execsql { SELECT * FROM sqlite_master }

     execsql { PRAGMA cache_size }

   } {59}

 }

 # Reset the sqlite3_temp_directory variable for the next run of tests:

 sqlite3 dbX :memory:

 dbX eval {PRAGMA temp_store_directory = ""}

 dbX close

 finish_test