Bugs item #2787825, was opened at 2009-05-06 14:21
Message generated for change (Comment added) made by vzzzbx
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Category: Mapi
Group: Clients CVS Head
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Wouter Alink (vzzzbx)
Assigned to: Nobody/Anonymous (nobody)
Summary: mclient: stdin + statement
Initial Comment:
It seems that there is a problem with both providing data via stdin and via
the -s feature in mclient. (see example below).
A possible solution could perhaps be to forbid this use. Another solution would
be to define a behaviour: either read the '-s' first or the stdin first.
(perhaps this already is the case, but I couldn't find any documentation about
it)
$ cat data.dat
1
2
3
4
5
$ N=4; head -n $N data.dat | mclient -lsql -p50151 -dtest -s "copy $N records
into aap from STDIN;"
MAPI = mone...@localhost:50151
QUERY = copy 4 records into aap from STDIN;
ERROR = !SQLException:sql:value ';' while parsing ';' from line 0 field 0 not
inserted, expecting type int
!SQLException:importTable:failed to import table
----------------------------------------------------------------------
>Comment By: Wouter Alink (vzzzbx)
Date: 2009-05-07 21:55
Message:
as discussed on the monetdb-users list, using either the -s _or_ the stdin
works fine (except for other reported/unreported bugs), but the combination
fails. (stefan's example works fine).
I can very well imagine that using a combination should not be allowed
(and should not even become a feature request), but I feel that the current
message is not very helpful.
And, actually (I hadn't thought of this option before), if I would have
specified "-i" then the documentation (mclient --help) says it reads from
stdin _after_ reading the command line args, but it generates the same
error.
After some more tests I discovered that:
- when using the command line args + stdin + mentioning '-i', the
semi-colon after "copy $N records into aap from STDIN;" should be left out,
so the following does work:
$ echo "1
2
3
4
5" | mclient -lsql -dtest -hskadi -p50151 -i -s "COPY 5 RECORDS INTO aap
FROM STDIN"
(notice the omission of ';' after the COPY statement)
If I do exactly the same, but leave out the '-i', no error is displayed,
but nothing gets inserted either.
If I use only stdin only:
$ echo "COPY 5 RECORDS INTO aap FROM STDIN;
1
2
3
4
5" | mclient -lsql -dtest -hskadi -p50151
then this works (only if the ';' after the COPY statement is present).
I don't know whether there are two different bugs mentioned in this
explanation, but I think there definitely is something wrong.
by the way: the create statement for aap is: "CREATE TABLE aap (x int);"
----------------------------------------------------------------------
Comment By: Stefan Manegold (stmane)
Date: 2009-05-07 19:30
Message:
What about:
{ N=4 ; echo "copy $N records into aap from STDIN;" ; head -n $N data.dat
; } | mclient -lsql -p50151 -dtest
?
----------------------------------------------------------------------
Comment By: Sjoerd Mullender (sjoerd)
Date: 2009-05-07 14:26
Message:
Where does it say that this is supported?
If it doesn't say anywhere, this is a feature request, not a bug.
----------------------------------------------------------------------
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https://sourceforge.net/tracker/?func=detail&atid=482468&aid=2787825&group_id=56967
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