rejigger things to increase coverage

lib/Adapter/PgsqlAdapter.php

@@ -33,6 +33,19 @@ private function get_sequence_name(string $table, string $column_name): string
         return "{$table}_{$column_name}_seq";
     }
 
+    public function buildInsert(string $table, string $keys, array $sequence): string
+    {
+        if ($sequence) {
+            $sql =
+                "INSERT INTO $table($keys," . $this->quote_name($sequence[0]) .
+                ') VALUES(?,' . $this->next_sequence_value($sequence[1]) . ')';
+        } else {
+            $sql = parent::buildInsert($table, $keys, $sequence);
+        }
+
+        return $sql;
+    }
+
     public function init_sequence_name(Table $table): string
     {
         $table->sequence = $table->class->getStaticPropertyValue('sequence') ??

lib/Connection.php

@@ -482,6 +482,14 @@ public function next_sequence_value(string $sequence_name): ?string
         return null;
     }
 
+    /**
+     * @param array<string> $sequence
+     */
+    public function buildInsert(string $table, string $keys, array $sequence): string
+    {
+        return "INSERT INTO $table($keys) VALUES(?)";
+    }
+
     /**
      * Quote a name like table names and field names.
      *

lib/SQLBuilder.php

@@ -327,14 +327,7 @@ private function build_delete(): string
     private function build_insert(): string
     {
         $keys = join(',', $this->quoted_key_names());
-
-        if ($this->sequence) {
-            $sql =
-                "INSERT INTO $this->table($keys," . $this->connection->quote_name($this->sequence[0]) .
-                ') VALUES(?,' . $this->connection->next_sequence_value($this->sequence[1]) . ')';
-        } else {
-            $sql = "INSERT INTO $this->table($keys) VALUES(?)";
-        }
+        $sql = $this->connection->buildInsert($this->table, $keys, $this->sequence);
 
         $e = new WhereClause($sql, [array_values($this->data)]);