Sporadic segfaults

[galenlynch]

I am using ODBC 0.5.2 with Julia 0.6.0-rc2 and PostgreSQL, and experience sporadic segfaults that happen more frequently when I run small queries. For example:

julia> db = ODBC.DSN("PostgreSQL")
ODBC.DSN(PostgreSQL)

julia> ODBC.query(db, "SELECT 1;")

signal (11): Segmentation fault
while loading no file, in expression starting on line 0
julia_type_to_llvm at /home/glynch/julia-0.6.0-rc2/src/cgutils.cpp:382
typed_store at /home/glynch/julia-0.6.0-rc2/src/cgutils.cpp:1221
emit_setfield at /home/glynch/julia-0.6.0-rc2/src/cgutils.cpp:2249
emit_builtin_call at /home/glynch/julia-0.6.0-rc2/src/codegen.cpp:3073
emit_call at /home/glynch/julia-0.6.0-rc2/src/codegen.cpp:3441
emit_expr at /home/glynch/julia-0.6.0-rc2/src/codegen.cpp:4139
emit_stmtpos at /home/glynch/julia-0.6.0-rc2/src/codegen.cpp:4058 [inlined]
emit_function at /home/glynch/julia-0.6.0-rc2/src/codegen.cpp:6242
... (output truncated)

Here is the full coredump.txt.

[galenlynch]

This happens about 80% of the time when I run that query. Disabling the garbage collector before I run it seems to help.

[galenlynch]

It looks like this is an issue with Julia instead of ODBC. I have made in issue in JuliaLang.