#!/bin/bash


db=$(basename $0 | sed 's/^postgres_queries2_//g')
if [ "$db" == "" ];then
	echo	"error/no db" >&2
	exit 1
fi

#echo $db

if [ "$1" == "config" ];then
cat << EOF
graph_title Postgres queries2 on $db
graph_args --base 1000
graph_vlabel Queries per \${graph_period}
graph_category db
graph_info Shows number of select, insert, update and delete queries
sel_seq.label s_selects
sel_seq.info Sequential selects on all tables
sel_seq.type DERIVE
sel_seq.min 0
sel_seq_rows.label s_select rows
sel_seq_rows.info Rows returned from sequential selects
sel_seq_rows.type DERIVE
sel_seq.min 0
sel_idx.label i_selects
sel_idx.info Sequential selects on all indexes
sel_idx.type DERIVE
sel_seq.min 0
sel_idx_rows.label i_select rows
sel_idx_rows.info Rows returned form index selects
sel_idx_rows.type DERIVE
sel_seq_rows.min 0
inserts.label inserts
inserts.info Rows inserted on all tables
inserts.type DERIVE
inserts.min 0
updates.label updates
updates.info Rows updated on all tables
updates.type DERIVE
updates.min 0
deletes.label deletes
deletes.info Rows deleted from all tables
deletes.type DERIVE
deletes.min 0
EOF
else
psql -At $db << EOF
select
	'sel_seq.value '	|| SUM(seq_scan)	|| E'\n' ||
	'sel_seq_rows.value '	|| SUM(seq_tup_read)	|| E'\n' ||
	'sel_idx.value '	|| SUM(idx_scan)	|| E'\n' ||
	'sel_idx_rows.value '	|| SUM(idx_tup_fetch)	|| E'\n' ||
	'inserts.value '	|| SUM(n_tup_ins)	|| E'\n' ||
	'updates.value '	|| SUM(n_tup_upd)	|| E'\n' ||
	'deletes.value '	|| SUM(n_tup_del)
		from pg_stat_all_tables;
EOF

#    my $sql = "SELECT SUM(seq_scan),SUM(seq_tup_read), ";
 #   $sql   .= "SUM(idx_scan),SUM(idx_tup_fetch), ";
 #   $sql   .= "SUM(n_tup_ins),SUM(n_tup_upd),SUM(n_tup_del) ";
 #   $sql   .= "from pg_stat_all_tables";
#	echo	1
fi