diff --git a/database/gdb/gdb.go b/database/gdb/gdb.go
index c2c50144a..1c3344149 100644
--- a/database/gdb/gdb.go
+++ b/database/gdb/gdb.go
@@ -378,7 +378,7 @@ const (
 	ctxKeyInternalProducedSQL gctx.StrKey = `CtxKeyInternalProducedSQL`
 
 	// type:[username[:password]@][protocol[(address)]]/dbname[?param1=value1&...&paramN=valueN]
-	linkPattern = `(\w+):([\w\-]*):(.*?)@(\w+?)\((.+?)\)/{0,1}([^\?]*)\?{0,1}(.*)`
+	linkPattern = `(\w+):([\w\-\$]*):(.*?)@(\w+?)\((.+?)\)/{0,1}([^\?]*)\?{0,1}(.*)`
 )
 
 type queryType int
diff --git a/database/gdb/gdb_z_mysql_internal_test.go b/database/gdb/gdb_z_mysql_internal_test.go
index d29589626..538ab967d 100644
--- a/database/gdb/gdb_z_mysql_internal_test.go
+++ b/database/gdb/gdb_z_mysql_internal_test.go
@@ -222,6 +222,22 @@ func Test_parseConfigNodeLink_WithType(t *testing.T) {
 		t.Assert(newNode.Charset, defaultCharset)
 		t.Assert(newNode.Protocol, `file`)
 	})
+	// #3146
+	gtest.C(t, func(t *gtest.T) {
+		node := &ConfigNode{
+			Link: `pgsql:BASIC$xxxx:123456@tcp(xxxx.hologres.aliyuncs.com:80)/xxx`,
+		}
+		newNode := parseConfigNodeLink(node)
+		t.Assert(newNode.Type, `pgsql`)
+		t.Assert(newNode.User, `BASIC$xxxx`)
+		t.Assert(newNode.Pass, `123456`)
+		t.Assert(newNode.Host, `xxxx.hologres.aliyuncs.com`)
+		t.Assert(newNode.Port, `80`)
+		t.Assert(newNode.Name, `xxx`)
+		t.Assert(newNode.Extra, ``)
+		t.Assert(newNode.Charset, defaultCharset)
+		t.Assert(newNode.Protocol, `tcp`)
+	})
 }
 
 func Test_Func_doQuoteWord(t *testing.T) {