# 2001 September 23
#
# 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 stressing the library by putting large amounts
# of data in a single row of a table.
#
# $Id: bigrow.test,v 1.1 2001/09/24 03:12:40 drh Exp $

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

# Make a big string that we can use for test data
#
do_test bigrow-1.0 {
  set ::bigstr {}
  for {set i 1} {$i<=9999} {incr i} {
    set sep [string index "abcdefghijklmnopqrstuvwxyz" [expr {$i%26}]]
    append ::bigstr "$sep [format %04d $i] "
  }
  string length $::bigstr
} {69993}

# Make a table into which we can insert some but records.
#
do_test bigrow-1.1 {
  execsql {
    CREATE TABLE t1(a text, b text, c text);
    SELECT name FROM sqlite_master
      WHERE type='table' OR type='index'
      ORDER BY name
  }
} {t1}

do_test bigrow-1.2 {
  set ::big1 [string range $::bigstr 0 65519]
  set sql "INSERT INTO t1 VALUES('abc',"
  append sql "'$::big1', 'xyz');"
  execsql $sql
  execsql {SELECT a, c FROM t1}
} {abc xyz}
do_test bigrow-1.3 {
  execsql {SELECT b FROM t1}
} [list $::big1]
do_test bigrow-1.4 {
  set sql "INSERT INTO t1 VALUES('abc',"
  append sql "'[string range $::bigstr 0 65520]', 'xyz');"
  set r [catch {execsql $sql} msg]
  lappend r $msg
} {1 {too much data for one table row}}

do_test bigrow-1.5 {
  execsql {
    UPDATE t1 SET a=b, b=a;
    SELECT b,c FROM t1
  }
} {abc xyz}
do_test bigrow-1.6 {
  execsql {
    SELECT * FROM t1
  }
} [list $::big1 abc xyz]
do_test bigrow-1.7 {
  execsql {
    INSERT INTO t1 VALUES('1','2','3');
    INSERT INTO t1 VALUES('A','B','C');
    SELECT b FROM t1 WHERE a=='1';
  }
} {2}
do_test bigrow-1.8 {
  execsql "SELECT b FROM t1 WHERE a=='$::big1'"
} {abc}
do_test bigrow-1.9 {
  execsql "SELECT b FROM t1 WHERE a!='$::big1' ORDER BY a"
} {B 2}

# Try doing some indexing on big columns
#
do_test bigrow-2.1 {
  execsql {
    CREATE INDEX i1 ON t1(a)
  }
  execsql "SELECT b FROM t1 WHERE a=='$::big1'"
} {abc}
do_test bigrow-2.2 {
  execsql {
    UPDATE t1 SET a=b, b=a
  }
  execsql "SELECT b FROM t1 WHERE a=='abc'"
} [list $::big1]
do_test bigrow-2.3 {
  execsql {
    UPDATE t1 SET a=b, b=a
  }
  execsql "SELECT b FROM t1 WHERE a=='$::big1'"
} {abc}

finish_test