[FEAT MERGE] GIS

src/sql/engine/expr/ob_expr_spatial_mbr.cpp

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+/**
+ * Copyright (c) 2021 OceanBase
+ * OceanBase CE is licensed under Mulan PubL v2.
+ * You can use this software according to the terms and conditions of the Mulan PubL v2.
+ * You may obtain a copy of Mulan PubL v2 at:
+ *          http://license.coscl.org.cn/MulanPubL-2.0
+ * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
+ * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
+ * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
+ * See the Mulan PubL v2 for more details.
+ * This file contains implementation for spatial_mbr expr.
+ */
+
+#define USING_LOG_PREFIX SQL_ENG
+#include "sql/engine/expr/ob_expr_spatial_mbr.h"
+#include "lib/geo/ob_geo_utils.h"
+#include "lib/geo/ob_s2adapter.h"
+#include "observer/omt/ob_tenant_srs_mgr.h"
+
+using namespace oceanbase::common;
+using namespace oceanbase::sql;
+
+namespace oceanbase
+{
+namespace sql
+{
+ObExprSpatialMbr::ObExprSpatialMbr(common::ObIAllocator &alloc)
+    : ObFuncExprOperator(alloc,
+                         T_FUN_SYS_SPATIAL_MBR,
+                         N_SPATIAL_MBR,
+                         1,
+                         NOT_ROW_DIMENSION)
+{
+
+}
+
+ObExprSpatialMbr::~ObExprSpatialMbr()
+{
+
+}
+
+int ObExprSpatialMbr::calc_result_type1(ObExprResType &type,
+                                        ObExprResType &type1,
+                                        common::ObExprTypeCtx &type_ctx) const
+{
+  int ret = OB_SUCCESS;
+  UNUSED(type_ctx);
+  type.set_varchar();
+  type.set_length(OB_DEFAULT_MBR_SIZE);
+  type.set_collation_type(CS_TYPE_BINARY);
+  type.set_collation_level(CS_LEVEL_IMPLICIT);
+  return ret;
+}
+
+// for old sql engine
+int ObExprSpatialMbr::calc_result1(common::ObObj &result,
+                                   const common::ObObj &obj,
+                                   common::ObExprCtx &expr_ctx) const
+{
+  UNUSED(obj);
+  UNUSED(expr_ctx);
+  result.set_null();
+  return OB_SUCCESS;
+}
+
+int ObExprSpatialMbr::eval_spatial_mbr(const ObExpr &expr,
+                                       ObEvalCtx &ctx,
+                                       ObDatum &res)
+{
+  UNUSED(expr);
+  UNUSED(ctx);
+  res.set_null();
+  return OB_SUCCESS;
+}
+
+int ObExprSpatialMbr::cg_expr(ObExprCGCtx &expr_cg_ctx,
+                              const ObRawExpr &raw_expr,
+                              ObExpr &rt_expr) const
+{
+  UNUSED(expr_cg_ctx);
+  UNUSED(raw_expr);
+  rt_expr.eval_func_ = eval_spatial_mbr;
+  return OB_SUCCESS;
+}
+
+} // namespace sql
+} // namespace oceanbase