diff --git a/src/ckdb.c b/src/ckdb.c
index e0bfaa91..299c177e 100644
--- a/src/ckdb.c
+++ b/src/ckdb.c
@@ -483,6 +483,9 @@ K_STORE *markersummary_store;
 K_TREE *markersummary_pool_root;
 K_STORE *markersummary_pool_store;
 
+// The markerid load start for markersummary
+char *mark_start = NULL;
+
 // WORKMARKERS
 K_TREE *workmarkers_root;
 K_TREE *workmarkers_workinfoid_root;
@@ -5639,6 +5642,7 @@ static struct option long_options[] = {
 	{ "loglevel",		required_argument,	0,	'l' },
 	// marker = enable mark/workmarker/markersummary auto generation
 	{ "marker",		no_argument,		0,	'm' },
+	{ "markstart",		required_argument,	0,	'M' },
 	{ "name",		required_argument,	0,	'n' },
 	{ "dbpass",		required_argument,	0,	'p' },
 	{ "btc-pass",		required_argument,	0,	'P' },
@@ -5683,7 +5687,7 @@ int main(int argc, char **argv)
 	memset(&ckp, 0, sizeof(ckp));
 	ckp.loglevel = LOG_NOTICE;
 
-	while ((c = getopt_long(argc, argv, "c:d:ghkl:mn:p:P:r:R:s:S:t:u:U:vw:yY:", long_options, &i)) != -1) {
+	while ((c = getopt_long(argc, argv, "c:d:ghkl:mM:n:p:P:r:R:s:S:t:u:U:vw:yY:", long_options, &i)) != -1) {
 		switch(c) {
 			case 'c':
 				ckp.config = strdup(optarg);
@@ -5742,6 +5746,9 @@ int main(int argc, char **argv)
 			case 'm':
 				markersummary_auto = true;
 				break;
+			case 'M':
+				mark_start = strdup(optarg);
+				break;
 			case 'n':
 				ckp.name = strdup(optarg);
 				break;
diff --git a/src/ckdb.h b/src/ckdb.h
index b626e048..16e33eb7 100644
--- a/src/ckdb.h
+++ b/src/ckdb.h
@@ -55,7 +55,7 @@
 
 #define DB_VLOCK "1"
 #define DB_VERSION "1.0.4"
-#define CKDB_VERSION DB_VERSION"-1.612"
+#define CKDB_VERSION DB_VERSION"-1.620"
 
 #define WHERE_FFL " - from %s %s() line %d"
 #define WHERE_FFL_HERE __FILE__, __func__, __LINE__
@@ -1958,6 +1958,9 @@ extern K_STORE *markersummary_store;
 extern K_TREE *markersummary_pool_root;
 extern K_STORE *markersummary_pool_store;
 
+// The markerid load start for markersummary
+extern char *mark_start;
+
 // WORKMARKERS
 typedef struct workmarkers {
 	int64_t markerid;
diff --git a/src/ckdb_dbio.c b/src/ckdb_dbio.c
index 2aa6d8cf..5c481963 100644
--- a/src/ckdb_dbio.c
+++ b/src/ckdb_dbio.c
@@ -6766,9 +6766,10 @@ bool markersummary_fill(PGconn *conn)
 	K_ITEM *item, *p_item;
 	int n, t, i, p_n;
 	MARKERSUMMARY *row, *p_row;
+	char *params[1];
 	char *field;
 	char *sel;
-	int fields = 20;
+	int fields = 20, par = 0;
 	bool ok = false;
 
 	LOGDEBUG("%s(): select", __func__);
@@ -6783,7 +6784,16 @@ bool markersummary_fill(PGconn *conn)
 		"sharecount,errorcount,firstshare,lastshare,firstshareacc,"
 		"lastshareacc,lastdiffacc"
 		MODIFYDATECONTROL
-		" from markersummary";
+		" from markersummary where markerid>=$1";
+	par = 0;
+	if (mark_start)
+		params[par++] = mark_start;
+	else
+		params[par++] = "0";
+	PARCHK(par, params);
+
+	LOGWARNING("%s(): loading from markerid>=%s", __func__, params[0]);
+
 	res = PQexec(conn, "Begin", CKPQ_READ);
 	rescode = PQresultStatus(res);
 	PQclear(res);
@@ -6792,7 +6802,7 @@ bool markersummary_fill(PGconn *conn)
 		return false;
 	}
 
-	res = PQexec(conn, sel, CKPQ_READ);
+	res = PQexecParams(conn, sel, par, NULL, (const char **)params, NULL, NULL, 0, CKPQ_READ);
 	rescode = PQresultStatus(res);
 	PQclear(res);
 	if (!PGOK(rescode)) {