92 lines
1.7 KiB
Perl
Executable File
92 lines
1.7 KiB
Perl
Executable File
#!/usr/bin/perl
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# Copyright (c) 2021-2023, PostgreSQL Global Development Group
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# contrib/intarray/bench/create_test.pl
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use strict;
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use warnings;
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print <<EOT;
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create table message (
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mid int not null,
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sections int[]
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);
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create table message_section_map (
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mid int not null,
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sid int not null
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);
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EOT
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open(my $msg, '>', "message.tmp") || die;
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open(my $map, '>', "message_section_map.tmp") || die;
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srand(1);
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#foreach my $i ( 1..1778 ) {
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#foreach my $i ( 1..3443 ) {
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#foreach my $i ( 1..5000 ) {
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#foreach my $i ( 1..29362 ) {
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#foreach my $i ( 1..33331 ) {
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#foreach my $i ( 1..83268 ) {
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foreach my $i (1 .. 200000)
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{
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my @sect;
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if (rand() < 0.7)
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{
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$sect[0] = int((rand()**4) * 100);
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}
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else
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{
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my %hash;
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@sect =
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grep { $hash{$_}++; $hash{$_} <= 1 }
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map { int((rand()**4) * 100) } 0 .. (int(rand() * 5));
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}
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if ($#sect < 0 || rand() < 0.1)
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{
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print $msg "$i\t\\N\n";
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}
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else
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{
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print $msg "$i\t{" . join(',', @sect) . "}\n";
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print $map "$i\t$_\n" foreach @sect;
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}
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}
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close $map;
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close $msg;
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copytable('message');
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copytable('message_section_map');
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print <<EOT;
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CREATE unique index message_key on message ( mid );
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--CREATE unique index message_section_map_key1 on message_section_map ( mid, sid );
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CREATE unique index message_section_map_key2 on message_section_map ( sid, mid );
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CREATE INDEX message_rdtree_idx on message using gist ( sections gist__int_ops );
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VACUUM ANALYZE;
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select count(*) from message;
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select count(*) from message_section_map;
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EOT
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unlink 'message.tmp', 'message_section_map.tmp';
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sub copytable
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{
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my $t = shift;
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print "COPY $t from stdin;\n";
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open(my $fff, '<', "$t.tmp") || die;
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while (<$fff>) { print; }
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close $fff;
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print "\\.\n";
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return;
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}
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