May 17, 2026, 11:40 PM

inbox/DataBase/PostgreSQL/dba_scripts/pg_vacuum_time.sh

@@ -0,0 +1,66 @@
+#!/bin/bash
+# Shows vacuum time for all or selected table.
+
+PORT=""
+USER=""
+TBL=""
+
+usage() {
+    echo "Usage: $0 -d <dbname> [-t <table> -p <port> -U <user>]"
+    exit 1
+}
+
+while getopts "d:p:t:U:u" OPT;
+do case "${OPT}" in
+      d) DBNAME=$OPTARG
+	 ;;
+      p) PORT="-p $OPTARG"
+	 ;;
+      U) USER="-U $OPTARG"
+	 ;;
+      t)  TBL="$OPTARG"
+	 ;;
+      u) usage
+	 ;;
+    [?]) usage
+   esac;
+done
+
+
+if [ "$DBNAME" = "" ]
+  then
+    usage
+fi
+
+getver()
+{
+VER=$(psql $PORT -t $USER $DBNAME <<_QRYVER_
+SELECT version();
+_QRYVER_
+)
+}
+getver
+
+VER=$(echo $VER | cut -c -16)
+echo "Version is $VER"
+
+vacuum_time() {
+TIMEINFO=$(psql -q $PORT $USER $DBNAME <<_QUERY_
+
+SELECT max(last_vacuum) - min(last_vacuum) as vacuum_time
+  FROM pg_stat_all_tables s
+ WHERE s.relname NOT LIKE 'pg_%'
+   AND s.relname NOT LIKE 'sql_%'
+   AND s.relname LIKE '%$TBL%'
+ ORDER by 1;
+
+_QUERY_
+
+)
+
+}
+
+vacuum_time
+echo "${TIMEINFO}"
+
+exit 0