pragma.test

sqlite数据库源码

# 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 1.9 2004/04/23 17:04:45 drh Exp $

set testdir [file dirname $argv0]
source $testdir/tester.tcl

# Delete the preexisting database to avoid the special setup
# that the "all.test" script does.
#
db close
file delete test.db
set DB [sqlite db test.db]

do_test pragma-1.1 {
  execsql {
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {2000 2000 1 1}
do_test pragma-1.2 {
  execsql {
    PRAGMA cache_size=1234;
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {1234 2000 1 1}
do_test pragma-1.3 {
  db close
  sqlite db test.db
  execsql {
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {2000 2000 1 1}
do_test pragma-1.4 {
  execsql {
    PRAGMA synchronous=OFF;
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {2000 2000 0 1}
do_test pragma-1.5 {
  execsql {
    PRAGMA cache_size=4321;
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {4321 2000 0 1}
do_test pragma-1.6 {
  execsql {
    PRAGMA synchronous=ON;
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {4321 2000 1 1}
do_test pragma-1.7 {
  db close
  sqlite db test.db
  execsql {
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {2000 2000 1 1}
do_test pragma-1.8 {
  execsql {
    PRAGMA default_synchronous=OFF;
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {2000 2000 0 0}
do_test pragma-1.9 {
  execsql {
    PRAGMA default_cache_size=123;
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {123 123 0 0}
do_test pragma-1.10 {
  db close
  set ::DB [sqlite db test.db]
  execsql {
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {123 123 0 0}
do_test pragma-1.11 {
  execsql {
    PRAGMA synchronous=NORMAL;
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {123 123 1 0}
do_test pragma-1.12 {
  execsql {
    PRAGMA synchronous=FULL;
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {123 123 2 0}
do_test pragma-1.13 {
  db close
  set ::DB [sqlite db test.db]
  execsql {
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {123 123 0 0}
do_test pragma-1.14 {
  execsql {
    PRAGMA default_synchronous=FULL;
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {123 123 2 2}
do_test pragma-1.15 {
  db close
  set ::DB [sqlite db test.db]
  execsql {
    PRAGMA cache_size;
    PRAGMA default_cache_size;
    PRAGMA synchronous;
    PRAGMA default_synchronous;
  }
} {123 123 2 2}

do_test pragma-2.1 {
  execsql {
    PRAGMA show_datatypes=on;
    PRAGMA empty_result_callbacks=off;
  }
  sqlite_datatypes $::DB {SELECT * FROM sqlite_master}
} {}
do_test pragma-2.2 {
  execsql {
    PRAGMA empty_result_callbacks=on;
  }
  sqlite_datatypes $::DB {SELECT * FROM sqlite_master}
} {text text text integer text}

# Make sure we can read the schema when empty_result_callbacks are
# turned on. Ticket #406
do_test pragma-2.2.1 {
  execsql {
    BEGIN;
    CREATE TABLE tabx(a,b,c,d);
    ROLLBACK;
    SELECT count(*) FROM sqlite_master;
  }
} {0}

do_test pragma-2.3 {
  execsql {
    CREATE TABLE t1(
       a INTEGER,
       b TEXT,
       c WHATEVER,
       d CLOB,
       e BLOB,
       f VARCHAR(123),
       g nVaRcHaR(432)
    );
  }
  sqlite_datatypes $::DB {SELECT * FROM t1}
} {INTEGER TEXT WHATEVER CLOB BLOB VARCHAR(123) nVaRcHaR(432)}
do_test pragma-2.4 {
  sqlite_datatypes $::DB {
     SELECT 1, 'hello', NULL
  }
} {NUMERIC TEXT TEXT}
do_test pragma-2.5 {
  sqlite_datatypes $::DB {
     SELECT 1+2 AS X, 'hello' || 5 AS Y, NULL AS Z
  }
} {NUMERIC TEXT TEXT}
do_test pragma-2.6 {
  execsql {
    CREATE VIEW v1 AS SELECT a+b, b||c, * FROM t1;
  }
  sqlite_datatypes $::DB {SELECT * FROM v1}
} {NUMERIC TEXT INTEGER TEXT WHATEVER CLOB BLOB VARCHAR(123) nVaRcHaR(432)}
do_test pragma-2.7 {
  sqlite_datatypes $::DB {
    SELECT d,e FROM t1 UNION SELECT a,c FROM t1
  }
} {INTEGER WHATEVER}
do_test pragma-2.8 {
  sqlite_datatypes $::DB {
    SELECT d,e FROM t1 EXCEPT SELECT c,e FROM t1
  }
} {WHATEVER BLOB}
do_test pragma-2.9 {
  sqlite_datatypes $::DB {
    SELECT d,e FROM t1 INTERSECT SELECT c,e FROM t1
  }
} {WHATEVER BLOB}
do_test pragma-2.10 {
  sqlite_datatypes $::DB {
    SELECT d,e FROM t1 INTERSECT SELECT c,e FROM v1
  }
} {WHATEVER BLOB}

# Construct a corrupted index and make sure the integrity_check
# pragma finds it.
#
if {![sqlite -has-codec]} {
do_test pragma-3.1 {
  execsql {
    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}
do_test pragma-3.2 {
  set rootpage [execsql {SELECT rootpage FROM sqlite_master WHERE name='i2'}]
  set db [btree_open test.db]
  btree_begin_transaction $db
  set c [btree_cursor $db $rootpage 1]
  btree_first $c
  btree_delete $c
  btree_commit $db
  btree_close $db
  execsql {PRAGMA integrity_check}
} {{rowid 1 missing from index i2} {wrong # of entries in index i2}}
}; # endif has-codec

# Test the temp_store and default_temp_store pragmas
#
do_test pragma-4.2 {
  execsql {
    PRAGMA temp_store='default';
    PRAGMA temp_store;
  }
} {0}
do_test pragma-4.3 {
  execsql {
    PRAGMA temp_store='file';
    PRAGMA temp_store;
  }
} {1}
do_test pragma-4.4 {
  execsql {
    PRAGMA temp_store='memory';
    PRAGMA temp_store;
  }
} {2}
do_test pragma-4.5 {
  execsql {
    PRAGMA default_temp_store='default';
    PRAGMA default_temp_store;
  }
} {0}
do_test pragma-4.6 {
  execsql {
    PRAGMA temp_store;
  }
} {2}
do_test pragma-4.7 {
  db close
  sqlite db test.db
  execsql {
    PRAGMA temp_store;
  }
} {0}
do_test pragma-4.8 {
  execsql {
    PRAGMA default_temp_store;
  }
} {0}
do_test pragma-4.9 {
  execsql {
    PRAGMA default_temp_store='file';
    PRAGMA default_temp_store;
  }
} {1}
do_test pragma-4.10 {
  execsql {
    PRAGMA temp_store;
  }
} {0}
do_test pragma-4.11 {
  db close
  sqlite db test.db
  execsql {
    PRAGMA temp_store;
  }
} {1}
do_test pragma-4.12 {
  execsql {
    PRAGMA default_temp_store;
  }
} {1}
do_test pragma-4.13 {
  execsql {
    PRAGMA default_temp_store='memory';
    PRAGMA default_temp_store;
  }
} {2}
do_test pragma-4.14 {
  execsql {
    PRAGMA temp_store;
  }
} {1}
do_test pragma-4.15 {
  db close
  sqlite db test.db
  execsql {
    PRAGMA temp_store;
  }
} {2}
do_test pragma-4.16 {
  execsql {
    PRAGMA default_temp_store;
  }
} {2}
do_test pragma-4.17 {
  execsql {
    PRAGMA temp_store='file';
    PRAGMA temp_store
  }
} {1}
do_test pragma-4.18 {
  execsql {
    PRAGMA default_temp_store
  }
} {2}
do_test pragma-4.19 {
  db close
  sqlite db test.db
  execsql {
    PRAGMA temp_store
  }
} {2}

# Changing the TEMP_STORE deletes any existing temporary tables
#
do_test pragma-4.20 {
  execsql {SELECT name FROM sqlite_temp_master}
} {}
do_test pragma-4.21 {
  execsql {
    CREATE TEMP TABLE test1(a,b,c);
    SELECT name FROM sqlite_temp_master;
  }
} {test1}
do_test pragma-4.22 {
  execsql {
    PRAGMA temp_store='file';
    SELECT name FROM sqlite_temp_master;
  }
} {}
do_test pragma-4.23 {
  execsql {
    CREATE TEMP TABLE test1(a,b,c);
    SELECT name FROM sqlite_temp_master;
  }
} {test1}
do_test pragma-4.24 {
  execsql {
    PRAGMA temp_store='memory';
    SELECT name FROM sqlite_temp_master;
  }
} {}
do_test pragma-4.25 {
  catchsql {
    BEGIN;
    PRAGMA temp_store='default';
    COMMIT;
  }
} {1 {temporary storage cannot be changed from within a transaction}}
catchsql {COMMIT}

finish_test