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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 12:15:05 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-04 12:15:05 +0000
commit46651ce6fe013220ed397add242004d764fc0153 (patch)
tree6e5299f990f88e60174a1d3ae6e48eedd2688b2b /contrib/intarray/bench/create_test.pl
parentInitial commit. (diff)
downloadpostgresql-14-46651ce6fe013220ed397add242004d764fc0153.tar.xz
postgresql-14-46651ce6fe013220ed397add242004d764fc0153.zip
Adding upstream version 14.5.upstream/14.5upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'contrib/intarray/bench/create_test.pl')
-rwxr-xr-xcontrib/intarray/bench/create_test.pl91
1 files changed, 91 insertions, 0 deletions
diff --git a/contrib/intarray/bench/create_test.pl b/contrib/intarray/bench/create_test.pl
new file mode 100755
index 0000000..993a457
--- /dev/null
+++ b/contrib/intarray/bench/create_test.pl
@@ -0,0 +1,91 @@
+#!/usr/bin/perl
+
+# Copyright (c) 2021, PostgreSQL Global Development Group
+
+# contrib/intarray/bench/create_test.pl
+
+use strict;
+use warnings;
+
+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(my $msg, '>', "message.tmp") || die;
+open(my $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(my $fff, '<', "$t.tmp") || die;
+ while (<$fff>) { print; }
+ close $fff;
+ print "\\.\n";
+ return;
+}