sqlite/test/createtab.test
drh b7af4452d9 Allow CREATE TABLE to occur while other queries are running. DROP TABLE is
still prohibited, however, since we do not want to delete a table out
from under an running query. (CVS 3902)

FossilOrigin-Name: 5b4bf1fce4d589337cfb1b46d75c751bbdc607d5
2007-05-02 17:54:55 +00:00

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# 2007 May 02
#
# 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. The
# focus of this file is testing that it is OK to create new tables
# and indices while creating existing tables and indices.
#
# $Id: createtab.test,v 1.1 2007/05/02 17:54:56 drh Exp $
set testdir [file dirname $argv0]
source $testdir/tester.tcl
# Run these tests for all possible values of autovacuum.
#
for {set av 0} {$av<=2} {incr av} {
db close
file delete -force test.db test.db-journal
sqlite3 db test.db
# Create a table that spans multiple pages. It is important
# that part of the database be in pages beyond the root page.
#
do_test createtab-$av.1 {
execsql "PRAGMA auto_vacuum=$av"
execsql {
PRAGMA page_size=1024;
CREATE TABLE t1(x INTEGER PRIMARY KEY, y);
INSERT INTO t1 VALUES(1, hex(randomblob(200)));
INSERT INTO t1 VALUES(2, hex(randomblob(200)));
INSERT INTO t1 VALUES(3, hex(randomblob(200)));
INSERT INTO t1 VALUES(4, hex(randomblob(200)));
SELECT count(*) FROM t1;
}
} {4}
do_test createtab-$av.2 {
file size test.db
} [expr {1024*(4+($av!=0)+([execsql {PRAGMA encoding}]!="UTF-8")*2)}]
# Start reading the table
#
do_test createtab-$av.3 {
set STMT [sqlite3_prepare db {SELECT x FROM t1} -1 TAIL]
sqlite3_step $STMT
} {SQLITE_ROW}
do_test createtab-$av.4 {
sqlite3_column_int $STMT 0
} {1}
# While still reading the table, create a new table.
#
do_test createtab-$av.5 {
execsql {
CREATE TABLE t2(a,b);
INSERT INTO t2 VALUES(1,2);
SELECT * FROM t2;
}
} {1 2}
# Continue reading the original table.
#
do_test createtab-$av.6 {
sqlite3_column_int $STMT 0
} {1}
do_test createtab-$av.7 {
sqlite3_step $STMT
} {SQLITE_ROW}
do_test createtab-$av.8 {
sqlite3_column_int $STMT 0
} {2}
# Do another cycle of creating a new database table while contining
# to read the original table.
#
do_test createtab-$av.11 {
execsql {
CREATE TABLE t3(a,b);
INSERT INTO t3 VALUES(4,5);
SELECT * FROM t3;
}
} {4 5}
do_test createtab-$av.12 {
sqlite3_column_int $STMT 0
} {2}
do_test createtab-$av.13 {
sqlite3_step $STMT
} {SQLITE_ROW}
do_test createtab-$av.14 {
sqlite3_column_int $STMT 0
} {3}
# One more cycle.
#
do_test createtab-$av.21 {
execsql {
CREATE TABLE t4(a,b);
INSERT INTO t4 VALUES('abc','xyz');
SELECT * FROM t4;
}
} {abc xyz}
do_test createtab-$av.22 {
sqlite3_column_int $STMT 0
} {3}
do_test createtab-$av.23 {
sqlite3_step $STMT
} {SQLITE_ROW}
do_test createtab-$av.24 {
sqlite3_column_int $STMT 0
} {4}
# Finish reading. Do an integrity check on the database.
#
do_test createtab-$av.30 {
sqlite3_step $STMT
} {SQLITE_DONE}
do_test createtab-$av.31 {
sqlite3_finalize $STMT
} {SQLITE_OK}
do_test createtab-$av.32 {
execsql {
SELECT name FROM sqlite_master WHERE type='table' ORDER BY 1
}
} {t1 t2 t3 t4}
integrity_check createtab-$av.40
}
finish_test