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Installing the PL/pgSQL Debugger Extension (pldbgapi) for pgAdmin III on PostgreSQL 9.4 and Ubuntu 14.10
# PostgreSQL can be on a remote server but you'll need root privileges in Linux and superuser in PostgreSQL.
# First install build tools
sudo su
# you can also use apt
aptitude install build-essential
aptitude install postgresql-server-dev-9.4
aptitude install libkrb5-dev # I had a dependency on kerberos, you might not
# Clone and build the PL/pgSQL server-side debugger
cd /usr/local/src
git clone git://
cd pldebugger
export USE_PGXS=1
make install
# Find location of postgresql.conf at the PostgreSQL console:
# SHOW config_file;
nano /etc/postgresql/9.4/main/postgresql.conf
# In nano use ^W to search for: shared_preload_libraries
# Edit the entry to add the library 'plugin_debugger':
shared_preload_libraries = 'plugin_debugger'
# If you have multiple libs, coma separate:
shared_preload_libraries = 'pg_stat_statements,plugin_debugger'
# Restart PostgreSQL
pg_ctlcluster --mode fast 9.4-main restart
# In a PostgreSQL database that you want to enable debugging install the extension
# In pgAdmin navigate to the same database and right click a PL/pgSQL function.
# In the context menu choose Debugging > Debug.
# A Debugger window will open and prompt for any parameters.
# It will then break on the first line of executable code.
# More info from the creators at:
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