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crash on multiple queries to postgresql db

Hi,


Subsequent calls to:

conn <- dbConnect(PgSQL(), host="localhost", dbname="xxx", user="xxx")
query <- dbSendQuery(conn, query_text)
res <- dbGetResult(query) 

are resulting in this:

*** glibc detected *** /usr/local/lib/R/bin/exec/R: realloc(): invalid 
pointer: 0x0a605de4 ***
======= Backtrace: =========
/lib/i686/cmov/libc.so.6[0xb7cd16b4]
/lib/i686/cmov/libc.so.6(realloc+0x242)[0xb7cd5d12]
/usr/local/pgsql/lib/libpq.so.4(pqCheckOutBufferSpace+0x7c)[0xb780edfe]


# R info
sessionInfo()
R version 2.8.0 (2008-10-20) 
i686-pc-linux-gnu 

locale:
LC_CTYPE=en_US.UTF-8;LC_NUMERIC=C;LC_TIME=en_US.UTF-8;LC_COLLATE=en_US.UTF-8;LC_MONETARY=C;LC_MESSAGES=en_US.UTF-8;LC_PAPER=en_US.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTIFICATION=C

attached base packages:
[1] grid      stats     graphics  grDevices utils     datasets  methods  
[8] base     

other attached packages:
[1] RdbiPgSQL_1.8.0 Rdbi_1.8.0      lattice_0.17-20


Any ideas?