Re: Problem with COPY INTO

Hi Stefan, thanks for your help, removing ';' helped. I'm now struggling to load 100+ million of rows via COPY INTO FROM STDIN, but it just fails (no error printed, apart from "0 affected rows"). 10-20 mil rows is ok to load via this method, and I'll see if I can make something that could split up the input into chunks and feed it into mclient. Cheers, Nikola

Gesendet: Freitag, 15. April 2016 um 00:39 Uhr Von: "Stefan Manegold" An: "Communication channel for MonetDB users" Betreff: Re: Problem with COPY INTO

Mind the difference:

$ mclient -d demo -s "COPY 15 RECORDS INTO errortable FROM STDIN USING DELIMITERS '\t','\n';" - < /tmp/x.txt ^ Failed to import table Column value 1 missing syntax error, unexpected sqlINT in: "100"

$ mclient -d demo -s "COPY 15 RECORDS INTO errortable FROM STDIN USING DELIMITERS '\t','\n'" - < /tmp/x.txt ^^ 15 affected rows

While the examples at https://www.monetdb.org/Documentation/mclient-man-page and https://www.monetdb.org/Documentation/Cookbooks/SQLrecipes/LoadingBulkData indeed omit the semicolon (';'), they admittedly do not seem to menion this explicitly ...

Stefan

----- On Apr 15, 2016, at 12:28 AM, Stefan Manegold Stefan.Manegold@cwi.nl wrote:

...

Hi,

one question I have is why you specify that your string delimiter is a single quote, while your data does not seem to have any string delimiters?

As for the granting of premissions, you might want to file a bug report; either the documentation of the implementation is wrong, or at least they do not match or are misleading. (well, I assume you you replaced "copy_role" by the actual role's name that you want to grant the permission to, right?)

Best, Stefan

----- On Apr 14, 2016, at 10:54 PM, Knezevic Nikola nikkne@gmx.ch wrote:

...

Hi all,

I've lost a significant time trying to get data from mysql database into monetdb. Since I have a lot of data, I wanted to make it as fast and automated as possible, but to no avail.

There are several issues I encountered, and I'd appreciate any help on any of them. I'm running the latest monetDB on CentOS: % mclient --version mclient, the MonetDB interactive terminal (Jul2015-SP4) support for command-line editing compiled-in character encoding: UTF-8

1. I tried following the last example on https://www.monetdb.org/Documentation/SQLreference/Permissions in order to get another user to be able to perform COPY INTO, but it fails:

% mclient -u monetdb -d some_db password: Welcome to mclient, the MonetDB/SQL interactive terminal (Jul2015-SP4) Database: MonetDB v11.21.19 (Jul2015-SP4), 'mapi:monetdb://internal:50000/some_db' Type \q to quit, \? for a list of available commands auto commit mode: on sql>GRANT COPY FROM TO copy_role; syntax error, unexpected COPY in: "grant copy"

2. Ok, since I can't run COPY INTO FROM FILE, I decided to go with FROM STDIN version. To do so, I dump the mysql database and import that in monetdb. That also fails:

% mysql -N -B -u reader -pxxx some_db -h some_host -e "SELECT * FROM errortable;"|mclient -d some_db -s "COPY 15 RECORDS INTO errortable FROM STDIN USING DELIMITERS '\t','\n','\'';" - Failed to import table Column value 1 missing syntax error, unexpected sqlINT in: "100"

% mclient -u writer -d some_db password: Welcome to mclient, the MonetDB/SQL interactive terminal (Jul2015-SP4) Database: MonetDB v11.21.19 (Jul2015-SP4), 'mapi:monetdb://internal:50000/some_db' Type \q to quit, \? for a list of available commands auto commit mode: on sql>\d errortable CREATE TABLE "some_db"."errortable" ( "rejectreason" INTEGER NOT NULL, "text" CHARACTER LARGE OBJECT );

Another try also fails (still using STDIN):

% mysql -N -B -u reader -pxxx some_db -h some_host -e "SELECT * FROM errortable;" >test.out % mclient -d some_db -s "COPY 15 RECORDS INTO errortable FROM STDIN USING DELIMITERS '\t','\n','\'';"

(note different error messages, and also note that 100 is a perfectly good sqlINT)

If I try the following, this succeeds. However, this is something I'm trying to avoid, as I'd had to create huge files (100+GB), which is an absolute waste of space and time.

% mysql -N -B -u reader -pxxx some_db -h some_host -e "SELECT * FROM errortable;" >test.out % mclient -d some_db -s "COPY 15 RECORDS INTO errortable FROM '/home/nikola/test.out' USING DELIMITERS '\t','\n','\'';" COPY INTO: insufficient privileges: COPY INTO from file(s) requires database administrator rights, use 'COPY INTO "errortable" FROM STDIN' instead # obviously, fails due to (1)

% mclient -u monetdb -d some_db -s "COPY 15 RECORDS INTO some_db.errortable FROM '/home/nikola/test.out' USING DELIMITERS '\t','\n','\'';" password: 15 affected rows

The file in question is super simple, a list of integers with textual description: 100 Some limit exceeded 101 Another limit exceeded 404 Service temporarily not available 405 Service not available 500 Server not available 700 End of world as we know it 701 User already logged in 10000 Book not found 10001 Price reasonability doubtfull 10002 Client is well known 20001 Activation in progress 20002 Pre-load limit exceeded 30000 Pre-load limit exceeded again 1 test 5 Invalid value 0 to divide with

Any hints on how to solve this super annoying problem?

Thanks, Nikola _______________________________________________ users-list mailing list users-list@monetdb.org https://www.monetdb.org/mailman/listinfo/users-list

-- | Stefan.Manegold@CWI.nl | DB Architectures (DA) | | www.CWI.nl/~manegold/ | Science Park 123 (L321) | | +31 (0)20 592-4212 | 1098 XG Amsterdam (NL) | _______________________________________________ users-list mailing list users-list@monetdb.org https://www.monetdb.org/mailman/listinfo/users-list

-- | Stefan.Manegold@CWI.nl | DB Architectures (DA) | | www.CWI.nl/~manegold/ | Science Park 123 (L321) | | +31 (0)20 592-4212 | 1098 XG Amsterdam (NL) | _______________________________________________ users-list mailing list users-list@monetdb.org https://www.monetdb.org/mailman/listinfo/users-list