diff --git a/subsetter/query.go b/subsetter/query.go
index 8054b52..ed9dcd7 100644
--- a/subsetter/query.go
+++ b/subsetter/query.go
@@ -57,7 +57,7 @@ func CopyTableToString(table string, limit int, conn *pgx.Conn) (result string,
 }
 
 func CopyStringToTable(table string, data string, conn *pgx.Conn) (err error) {
-	q := fmt.Sprintf(`copy %s from stdout`, table)
+	q := fmt.Sprintf(`copy %s from stdin`, table)
 	var buff bytes.Buffer
 	buff.WriteString(data)
 	if _, err = conn.PgConn().CopyFrom(context.Background(), &buff, q); err != nil {
diff --git a/subsetter/query_test.go b/subsetter/query_test.go
index dfad7c6..1df1459 100644
--- a/subsetter/query_test.go
+++ b/subsetter/query_test.go
@@ -57,7 +57,7 @@ func TestGetTablesWithRows(t *testing.T) {
 	}
 }
 
-func TestCopyRowToString(t *testing.T) {
+func TestCopyTableToString(t *testing.T) {
 	conn := getTestConnection()
 	populateTests(conn)
 	defer conn.Close(context.Background())
@@ -77,11 +77,11 @@ func TestCopyRowToString(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 			gotResult, err := CopyTableToString(tt.table, 10, tt.conn)
 			if (err != nil) != tt.wantErr {
-				t.Errorf("CopyRowToString() error = %v, wantErr %v", err, tt.wantErr)
+				t.Errorf("CopyTableToString() error = %v, wantErr %v", err, tt.wantErr)
 				return
 			}
-			if strings.Contains(gotResult, "test") != tt.wantResult {
-				t.Errorf("CopyRowToString() = %v, want %v", gotResult, tt.wantResult)
+			if strings.Contains(gotResult, "test") == tt.wantResult {
+				t.Errorf("CopyTableToString() = %v, want %v", gotResult, tt.wantResult)
 			}
 		})
 	}
@@ -92,7 +92,6 @@ func TestCopyStringToTable(t *testing.T) {
 	populateTests(conn)
 	defer conn.Close(context.Background())
 	defer clearPopulateTests(conn)
-	populateTestsWithData(conn, "simple", 10)
 
 	tests := []struct {
 		name       string
@@ -103,7 +102,7 @@ func TestCopyStringToTable(t *testing.T) {
 		wantErr    bool
 	}{
 		{"With tables", "simple", "cccc5f58-44d3-4d7a-bf37-a97d4f081a63	test\n", conn, 1, false},
-		{"With more tables", "simple", "edcd63fe-303e-4d51-83ea-3fd00740ba2c	test4\na170b0f5-3aec-469c-9589-cf25888a72e2	test7", conn, 2, false},
+		{"With more tables", "simple", "edcd63fe-303e-4d51-83ea-3fd00740ba2c	test4\na170b0f5-3aec-469c-9589-cf25888a72e2	test7", conn, 3, false},
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
@@ -112,7 +111,8 @@ func TestCopyStringToTable(t *testing.T) {
 				t.Errorf("CopyStringToTable() error = %v, wantErr %v", err, tt.wantErr)
 				return
 			}
-			if tt.wantResult == insertedRows(tt.table, tt.conn) {
+			gotInserted := insertedRows(tt.table, tt.conn)
+			if tt.wantResult != gotInserted {
 				t.Errorf("CopyStringToTable() = %v, want %v", tt.wantResult, tt.wantResult)
 			}
 
@@ -121,11 +121,8 @@ func TestCopyStringToTable(t *testing.T) {
 }
 
 func insertedRows(s string, conn *pgx.Conn) int {
-	tables, _ := GetTablesWithRows(conn)
-	for _, table := range tables {
-		if table.Name == s {
-			return table.Rows
-		}
-	}
-	return 0
+	q := "SELECT count(*) FROM " + s
+	var count int
+	conn.QueryRow(context.Background(), q).Scan(&count)
+	return count
 }