text: // Licensed to the Apache Software Foundation (ASF) under one
  // or more contributor license agreements.  See the NOTICE file
  // distributed with this work for additional information
  // regarding copyright ownership.  The ASF licenses this file
  // to you under the Apache License, Version 2.0 (the
  // "License"); you may not use this file except in compliance
  // with the License.  You may obtain a copy of the License at
  //
  //   http://www.apache.org/licenses/LICENSE-2.0
  //
  // Unless required by applicable law or agreed to in writing,
  // software distributed under the License is distributed on an
  // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  // KIND, either express or implied.  See the License for the
  // specific language governing permissions and limitations
  // under the License.
  
  #include "vec/exprs/varray_literal.h"
  
  namespace doris::vectorized {
  
  Status VArrayLiteral::prepare(RuntimeState* state, const RowDescriptor& row_desc,
                                VExprContext* context) {
      DCHECK_EQ(type().children.size(), 1) << "array children type not 1";
  
      RETURN_IF_ERROR(VExpr::prepare(state, row_desc, context));
      bool is_null = (_node_type == TExprNodeType::NULL_LITERAL);
      Field array = is_null ? Field() : Array();
      for (const auto child : _children) {
          Field item;
          child->get_const_col(context)->column_ptr->get(0, item);
          array.get<Array>().push_back(item);
      }
      _column_ptr = _data_type->create_column_const(1, array);
      return Status::OK();
  }
  
  } // namespace doris::vectorized
  