postinst is in odbc-postgresql 1:10.01.0000-1.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | #!/bin/sh
set -e
case $1 in
configure)
if [ "$2" ] && dpkg --compare-versions "$2" lt "1:09.00.0310-2" && \
grep -q /usr/lib/odbc/psqlodbc..so /etc/odbcinst.ini ; then
echo "Updating /etc/odbcinst.ini for multiarch support"
odbcinst -u -d -n 'PostgreSQL ANSI'
odbcinst -u -d -n 'PostgreSQL Unicode'
fi
if ! grep -q PostgreSQL /etc/odbcinst.ini ; then
odbcinst -i -d -f /usr/share/psqlodbc/odbcinst.ini.template
fi ;;
esac
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