Oh – monetdb version: This happened after an upgrade to the latest release. We upgraded Friday.
[lcj34@cbsudc01 monetdbFiles]$ monetdb version
MonetDB Database Server Toolkit v11.37.7 (Jun2020)
[lcj34@cbsudc01 monetdbFiles]$
And another db crashed without any extra info in the log other than it crashed. I was able to delete that db and recreate it.
From: Lynn Carol Johnson
Date: Monday, June 29, 2020 at 10:49 AM
To: Communication channel for MonetDB users
Subject: Re: inadvertantly last schema
Jennie - What command can I run in monetdb to verify the tables are there? It does look like nothing have been removed from the bat folders.
From: users-list on behalf of Ying Zhang
Reply-To: Communication channel for MonetDB users
Date: Monday, June 29, 2020 at 10:47 AM
To: Communication channel for MonetDB users
Subject: Re: inadvertantly last schema
Hai Lynn,
This is very strange. Which MonetDB version are you using (i.e. mserver5 --version)?
I quickly tried your scenario in the Jun2020 version, but I don’t have this problem:
sql>schema test ;
syntax error, unexpected SCHEMA in: "schema"
sql>select s.name, t.name from tables t, schemas s where t.schema_id = s.idhttp://s.id and s.name = 'test';
+------+------+
| name | name |
+======+======+
| test | t |
+------+------+
1 tuple
sql>set schema test ;
operation successful
sql>\d
TABLE test.t
Are you sure you’ve lost all data? Because such error should never have affected your data. Can you check if your data tables are still there, even if the “\d” command doesn’t return anything?
- Jennie
On 28 Jun 2020, at 18:07, Lynn Carol Johnson mailto:lcj34@cornell.edu> wrote:
Hi all –
I have a monetdb instance with a lot of tables and a lot of data. This data is organized into schemas. While logging on today as the admistrator, I inadvertently typed:
sql>schema maizeFullGenome;
syntax error, unexpected SCHEMA in: "schema"
sql>
Instead of “set schema maizeFullGenome;”
This has apparently overwritten the data I had in my maizeFullGenome Schema. Is there anyway to get this back besides finding an old copy of the db? The following shows the schema as now gone:
sql>set schema maizeFullGenome;
operation successful
sql>\d
sql>
Yes, a very stupid mistake.
Lynn
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