- users-list - monetdb.org

wrong command on deb package installation page
by Manuel Pagliai 04 Mar '22

04 Mar '22

Hello, I was following these instructions: https://www.monetdb.org/downloads/deb/ I think there is a mistake in the page and the command sudo wget --output-document=/etc/apt/trusted.gpg.d/monetdb.gpg /downloads/MonetDB-GPG-KEY.gpg should be replaced with sudo wget --output-document=/etc/apt/trusted.gpg.d/monetdb.gpg https://www.monetdb.org/downloads/MonetDB-GPG-KEY.gpg Best regards, *Manuel Pagliai* Visokio Ltd www.visokio.com +44 20 7351 4646

2 1

Iterations in MonetDB
by Oxana Dolmatova 23 Feb '22

23 Feb '22

Hello MonetDB Team, I want to integrate iterations into MonetDB using the barrier symbols provided by MAL (here the variable list_of_updates is repeated body of the iteration and ex_cond is the exit condition): ======================================= res_body = stmt_list(sql->sa, list_of_updates); stmt *s_begin = stmt_begin(sql->sa); list_append(res_list, s_begin); list_append(res_list, ex_cond); stmt *s_check = stmt_check(sql->sa, ex_cond, s_begin); list_append(res_list, s_check); … [View More]

1 0

Fwd: COPY SELECT INTO with problems on new version 11.43.5 (Jan2022)
by Ariel Abadi 16 Feb '22

16 Feb '22

Hi All! I'm resending to the new user list. BR Ariel ---------- Forwarded message --------- From: Ariel Abadi <aabadi(a)starbi.com> Date: Fri, Feb 4, 2022, 18:44 Subject: COPY SELECT INTO with problems on new version 11.43.5 (Jan2022) To: Communication channel for MonetDB users <users-list(a)monetdb.org> Hi All! We found a problem on the new version 11.43.5 (Jan2022). We have some processes that run the COPY SELECT INTO to "move" data from monetdb to other different databases. … [View More]

2 1

Announcement: New Jan2022-SP1 Bugfix release of MonetDB suite
by Sjoerd Mullender 14 Feb '22

14 Feb '22

The MonetDB team at MonetDB Solutions BV is pleased to announce the Jan2022-SP1 bugfix release of the MonetDB suite of programs. More information about MonetDB can be found on our website at <https://www.monetdb.org/>. For details on this release, please see the release notes at <https://www.monetdb.org/documentation/admin-guide/release-notes/jan2022/>. As usual, the download location is <https://www.monetdb.org/downloads/>. ### SQL Frontend - [This feature was already … [View More]

1 0

mailing list software updated
by Sjoerd Mullender 10 Feb '22

10 Feb '22

I have updated the mailing list software on monetdb.org from mailman2 to mailman3. This means that the old accounts for managing list subscriptions do not work anymore. In order to manage your subscription using a web interface, you will need to create a new account at https://www.monetdb.org/lists/. You can associate multiple email addresses to this account and manage all your subscriptions at monetdb.org using a single account, even if they use different email addresses. Unlike in … [View More]

1 0

None
by None 10 Feb '22

10 Feb '22

keeping the BAT open (I always use "bat("name").XXX", or keep a ref variable in a block. So, as far as I can tell, I should not have 7500 BATs open at once. Am I misunderstanding? Or is there some underlying component/module keeping the BATs open? Or is this just the amount of memory MonetDB will use? I do not have a BAT of BATs (as I was sure that this would cause problems, and from your description, will indeed). Thanks! Ed

1 0

None
by None 10 Feb '22

10 Feb '22

columns in a BAT (ie, BAT[OID, any]), is this just the first BUN? For update operations, does this mean that in the middle of inserting into a set of BATs, that as the BUN count is different, a concurrent query may not realize that the two BATs are synced? (this gets back to multiple client isolation for changes) Thanks for your time! Regards! Ed

1 0

None
by None 10 Feb '22

10 Feb '22

"This is implemented by storing a very large OID for each column. An update to the column destroys this OID."

1 0

None
by None 10 Feb '22

10 Feb '22

"For BAT-sets that contain exactly the same sets of OIDs, those OID-columns can be marked synced(). This information is then used to use positional lookup (the i-th element in BAT1 corresponds with the i-th in BAT2) and to turn semijoin- into very cheap copy-operations, etc." almost makes it sound as if you need synched() to actual test and set this bit. Is this true? How is the "syncedness" ensured when I have a BAT[OID, any], or determined?

1 0

New MonetDB JDBC driver v3.2 and JdbcClient released
by Martin van Dinther 03 Feb '22

03 Feb '22

The MonetDB team at MonetDB BV is pleased to announce a feature release of the MonetDB JDBC driver (monetdb-jdbc-3.2.jre8.jar) and JdbcClient CLI program (jdbcclient.jre8.jar). The new release adds the capability to use the SQL: COPY ... INTO ... ON CLIENT statements via Java from the client side. This allows users and programmers to use the much faster COPY statements to load large data sets into MonetDB from a local client side CSV file or stream. The JDBC MonetConnection API has been … [View More]

1 0