SELECT $CONDITION, count(*) FROM pg_stat_activity WHERE $ROW IS NOT NULL GROUP BY ($CONDITION);" |\
su - "$DBUSER"-c"$export_PGPASSFILE$psql -X --variable ON_ERROR_STOP=1 ${EXTRA_ARGS} -A -t -F' '" 2>/dev/null)"
echo"$OUTPUT"
# line with number of idle sessions is sometimes missing on Postgres 8.x. This can lead
# to an altogether empty section and thus the check disappearing.
echo"$OUTPUT" | grep-q'^t '||echo"t 0"
}
function postgres_simple_queries(){
# Querytime
# Supports versions >= 8.3, > 9.1
local QUERYTIME_QUERY
if compare_version_greater_equal "$POSTGRES_VERSION""9.2";then
QUERYTIME_QUERY="SELECT datname, datid, usename, client_addr, state AS state, COALESCE(ROUND(EXTRACT(epoch FROM now()-query_start)),0) AS seconds,
pid, regexp_replace(query, E'[\\n\\r\\u2028]+', ' ', 'g' ) AS current_query FROM pg_stat_activity WHERE (query_start IS NOT NULL AND (state NOT LIKE 'idle%' OR state IS NULL)) ORDER BY query_start, pid DESC;"
else
QUERYTIME_QUERY="SELECT datname, datid, usename, client_addr, '' AS state, COALESCE(ROUND(EXTRACT(epoch FROM now()-query_start)),0) AS seconds,
procpid as pid, regexp_replace(current_query, E'[\\n\\r\\u2028]+', ' ', 'g' ) AS current_query FROM pg_stat_activity WHERE (query_start IS NOT NULL AND current_query NOT LIKE '<IDLE>%') ORDER BY query_start, procpid DESC;"
fi
# Number of current connections per database
# We need to output the databases, too.
# This query does not report databases without an active query
local CONNECTIONS_QUERY
# Here the order of the columns did not match with what the server side expects,
# with the result, that there was never any active connection shown in the
# web-gui.
CONDITION="$ROW <> $IDLE"
CONNECTIONS_QUERY="SELECT d.datname, COUNT(datid) AS current,
(SELECT setting AS mc FROM pg_settings WHERE name = 'max_connections') AS mc
FROM pg_database d
LEFT JOIN pg_stat_activity s ON (s.datid = d.oid) WHERE $CONDITION
