postgresql/contrib/intarray/bench/create_test.pl
2006-03-11 04:38:42 +00:00

76 lines
1.6 KiB
Perl
Executable File

#!/usr/bin/perl
# $PostgreSQL: pgsql/contrib/intarray/bench/create_test.pl,v 1.4 2006/03/11 04:38:29 momjian Exp $
use strict;
print <<EOT;
create table message (
mid int not null,
sections int[]
);
create table message_section_map (
mid int not null,
sid int not null
);
EOT
open(MSG,">message.tmp") || die;
open(MAP,">message_section_map.tmp") || die;
srand( 1 );
#foreach my $i ( 1..1778 ) {
#foreach my $i ( 1..3443 ) {
#foreach my $i ( 1..5000 ) {
#foreach my $i ( 1..29362 ) {
#foreach my $i ( 1..33331 ) {
#foreach my $i ( 1..83268 ) {
foreach my $i ( 1..200000 ) {
my @sect;
if ( rand() < 0.7 ) {
$sect[0] = int( (rand()**4)*100 );
} else {
my %hash;
@sect = grep { $hash{$_}++; $hash{$_} <= 1 } map { int( (rand()**4)*100) } 0..( int(rand()*5) );
}
if ( $#sect < 0 || rand() < 0.1 ) {
print MSG "$i\t\\N\n";
} else {
print MSG "$i\t{".join(',',@sect)."}\n";
map { print MAP "$i\t$_\n" } @sect;
}
}
close MAP;
close MSG;
copytable('message');
copytable('message_section_map');
print <<EOT;
CREATE unique index message_key on message ( mid );
--CREATE unique index message_section_map_key1 on message_section_map ( mid, sid );
CREATE unique index message_section_map_key2 on message_section_map ( sid, mid );
CREATE INDEX message_rdtree_idx on message using gist ( sections gist__int_ops );
VACUUM ANALYZE;
select count(*) from message;
select count(*) from message_section_map;
EOT
unlink 'message.tmp', 'message_section_map.tmp';
sub copytable {
my $t = shift;
print "COPY $t from stdin;\n";
open( FFF, "$t.tmp") || die;
while(<FFF>) { print; }
close FFF;
print "\\.\n";
}