db/pgbackrest
1
0
Fork 0
mirror of https://github.com/pgbackrest/pgbackrest.git synced 2025-01-18 04:58:51 +02:00
Code Issues Releases Activity

Create create_test_table() function earlier in user guide.

Browse Source 
This function (which creates lots of tables) is generally useful for testing (not just stress testing) so create it as soon as the cluster is created.

Also add the data parameter which will insert a single row into the table so the file on disk is not zero bytes.
This commit is contained in:
David Steele 2022-01-23 13:53:52 -05:00
parent ca13f11b4a
commit 13623d6ee5
1 changed files with 17 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
doc/xml/user-guide.xml
View File

@ -1169,6 +1169,22 @@
<execute user="postgres" show="n">
<exe-cmd>{[pg-cluster-wait]}</exe-cmd>
</execute>
<execute user="postgres" show="n">
<exe-cmd>psql -c "
create or replace function create_test_table(prefix int, scale int, data bool) returns void as \$\$
declare
index int;
begin
for index in 1 .. scale loop
execute 'create table test_' || prefix || '_' || index || ' (id int)';
if data then
execute 'insert into test_' || prefix || '_' || index || ' values (' || (prefix * index) || ')';
end if;
end loop;
end \$\$ LANGUAGE plpgsql;"</exe-cmd>
</execute>
</execute-list>
<p>When archiving a WAL segment is expected to take more than 60 seconds (the default) to reach the <backrest/> repository, then the <backrest/> <br-option>archive-timeout</br-option> option should be increased. Note that this option is not the same as the <postgres/> <pg-option>archive_timeout</pg-option> option which is used to force a WAL segment switch; useful for databases where there are long periods of inactivity. For more information on the <postgres/> <pg-option>archive_timeout</pg-option> option, see <postgres/> <link url="https://www.postgresql.org/docs/current/static/runtime-config-wal.html">Write Ahead Log</link>.</p>
@ -3433,22 +3449,10 @@
<execute-list host="{[host-pg1]}">
<title>Create tables</title>
<execute user="postgres" show="n">
<exe-cmd>psql -c "
create or replace function create_test_table(prefix int, scale int) returns void as \$\$
declare
index int;
begin
for index in 1 .. scale loop
execute 'create table test_' || prefix || '_' || index || ' (id int)';
end loop;
end \$\$ LANGUAGE plpgsql;"</exe-cmd>
</execute>
<execute user="postgres">
<exe-cmd>
bash -c 'for i in {1..{[stress-scale-table]}};
do psql -c "select create_test_table(${i?}, 1000)";
do psql -c "select create_test_table(${i?}, 1000, true)";
done'
</exe-cmd>
</execute>