gdalalg_vector_sql.h

/******************************************************************************
 *
 * Project:  GDAL
 * Purpose:  "sql" step of "vector pipeline"
 * Author:   Even Rouault <even dot rouault at spatialys.com>
 *
 ******************************************************************************
 * Copyright (c) 2025, Even Rouault <even dot rouault at spatialys.com>
 *
 * SPDX-License-Identifier: MIT
 ****************************************************************************/
 
#ifndef GDALALG_VECTOR_SQL_INCLUDED
#define GDALALG_VECTOR_SQL_INCLUDED
 
#include "gdalalg_vector_pipeline.h"

 
/************************************************************************/
/*                      GDALVectorSQLAlgorithm                          */
/************************************************************************/
 
class GDALVectorSQLAlgorithm /* non final */
    : public GDALVectorPipelineStepAlgorithm
{
  public:
    static constexpr const char *NAME = "sql";
    static constexpr const char *DESCRIPTION =
        "Apply SQL statement(s) to a dataset.";
    static constexpr const char *HELP_URL = "/programs/gdal_vector_sql.html";
 
    explicit GDALVectorSQLAlgorithm(bool standaloneStep = false);
 
  private:
    static ConstructorOptions GetConstructorOptions(bool standaloneStep);
    bool RunStep(GDALPipelineStepRunContext &ctxt) override;
 
    std::vector<std::string> m_sql{};
    std::vector<std::string> m_outputLayer{};
    std::string m_dialect{};
};
 
/************************************************************************/
/*                     GDALVectorSQLAlgorithmStandalone                 */
/************************************************************************/
 
class GDALVectorSQLAlgorithmStandalone final : public GDALVectorSQLAlgorithm
{
  public:
    GDALVectorSQLAlgorithmStandalone()
        : GDALVectorSQLAlgorithm(/* standaloneStep = */ true)
    {
    }
 
    ~GDALVectorSQLAlgorithmStandalone() override;
};

 
#endif /* GDALALG_VECTOR_SQL_INCLUDED */