170 lines
7.0 KiB
C++
170 lines
7.0 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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* This file contains implementation for eval_st_covers.
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*/
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#define USING_LOG_PREFIX SQL_ENG
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#include "lib/geo/ob_geo_func_register.h"
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#include "lib/geo/ob_geo_ibin.h"
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#include "sql/session/ob_sql_session_info.h"
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#include "sql/engine/ob_exec_context.h"
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#include "observer/omt/ob_tenant_srs_mgr.h"
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#include "ob_expr_st_covers.h"
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#include "lib/geo/ob_geo_utils.h"
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#include "sql/engine/expr/ob_geo_expr_utils.h"
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using namespace oceanbase::common;
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using namespace oceanbase::sql;
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namespace oceanbase
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{
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namespace sql
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{
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ObExprPrivSTCovers::ObExprPrivSTCovers(ObIAllocator &alloc)
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: ObFuncExprOperator(alloc, T_FUN_SYS_ST_COVERS, N_PRIV_ST_COVERS, 2, NOT_VALID_FOR_GENERATED_COL, NOT_ROW_DIMENSION)
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{
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}
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ObExprPrivSTCovers::~ObExprPrivSTCovers()
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{
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}
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int ObExprPrivSTCovers::calc_result_type2(ObExprResType &type,
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ObExprResType &type1,
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ObExprResType &type2,
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common::ObExprTypeCtx &type_ctx) const
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{
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UNUSED(type_ctx);
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INIT_SUCC(ret);
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if (!ob_is_geometry(type1.get_type()) && !ob_is_string_type(type1.get_type()) && type1.get_type() != ObNullType) {
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ret = OB_ERR_GIS_INVALID_DATA;
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LOG_WARN("invalid type", K(ret), K(type1.get_type()));
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LOG_USER_ERROR(OB_ERR_GIS_INVALID_DATA, N_PRIV_ST_COVERS);
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} else if (!ob_is_geometry(type2.get_type()) && !ob_is_string_type(type2.get_type()) && type2.get_type() != ObNullType) {
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ret = OB_ERR_GIS_INVALID_DATA;
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LOG_WARN("invalid type", K(ret), K(type2.get_type()));
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LOG_USER_ERROR(OB_ERR_GIS_INVALID_DATA, N_PRIV_ST_COVERS);
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}
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if (OB_SUCC(ret)) {
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type.set_int32();
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type.set_scale(common::ObAccuracy::DDL_DEFAULT_ACCURACY[common::ObIntType].scale_);
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type.set_precision(common::ObAccuracy::DDL_DEFAULT_ACCURACY[common::ObIntType].precision_);
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}
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return ret;
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}
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template<typename ResType>
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int ObExprPrivSTCovers::eval_st_covers_common(ObEvalCtx &ctx,
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ObArenaAllocator &temp_allocator,
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ObString wkb1,
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ObString wkb2,
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ResType &res)
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{
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int ret = OB_SUCCESS;
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ObGeometry *geo1 = NULL;
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ObGeometry *geo2 = NULL;
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ObGeoType type1;
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ObGeoType type2;
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uint32_t srid1;
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uint32_t srid2;
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bool is_geo1_empty = false;
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bool is_geo2_empty = false;
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omt::ObSrsCacheGuard srs_guard;
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const ObSrsItem *srs = NULL;
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if (OB_FAIL(ObGeoTypeUtil::get_type_srid_from_wkb(wkb1, type1, srid1))) {
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LOG_WARN("get type and srid from wkb failed", K(wkb1), K(ret));
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} else if (OB_FAIL(ObGeoTypeUtil::get_type_srid_from_wkb(wkb2, type2, srid2))) {
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LOG_WARN("get type and srid from wkb failed", K(wkb2), K(ret));
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} else if (srid1 != srid2) {
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LOG_WARN("srid not the same", K(srid1), K(srid2));
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ret = OB_ERR_GIS_DIFFERENT_SRIDS;
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LOG_USER_ERROR(OB_ERR_GIS_DIFFERENT_SRIDS, N_PRIV_ST_COVERS, srid1, srid2);
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} else if (ObGeoTypeUtil::is_geo1_dimension_higher_than_geo2(type2, type1)) {
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res.set_bool(false);
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} else if (OB_FAIL(ObGeoExprUtils::get_srs_item(ctx, srs_guard, wkb1, srs, true, N_PRIV_ST_COVERS))) {
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LOG_WARN("fail to get srs item", K(ret), K(wkb1));
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} else if (OB_FAIL(ObGeoExprUtils::build_geometry(temp_allocator, wkb1, geo1, srs, N_PRIV_ST_COVERS,
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true, true))) {
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LOG_WARN("get first geo by wkb failed", K(ret));
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} else if (OB_FAIL(ObGeoExprUtils::build_geometry(temp_allocator, wkb2, geo2, srs, N_PRIV_ST_COVERS,
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true, true))) {
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LOG_WARN("get second geo by wkb failed", K(ret));
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} else if (OB_FAIL(ObGeoExprUtils::check_empty(geo1, is_geo1_empty))
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|| OB_FAIL(ObGeoExprUtils::check_empty(geo2, is_geo2_empty))) {
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LOG_WARN("check geo empty failed", K(ret));
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} else if (is_geo1_empty || is_geo2_empty) {
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res.set_null();
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} else if (OB_FAIL(ObGeoExprUtils::zoom_in_geos_for_relation(*geo1, *geo2))) {
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LOG_WARN("zoom in geos failed", K(ret));
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} else {
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ObGeoEvalCtx gis_context(&temp_allocator, srs);
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bool result = false;
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if (OB_FAIL(gis_context.append_geo_arg(geo2)) || OB_FAIL(gis_context.append_geo_arg(geo1))) {
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LOG_WARN("build gis context failed", K(ret), K(gis_context.get_geo_count()));
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} else if (OB_FAIL(ObGeoFunc<ObGeoFuncType::CoveredBy>::geo_func::eval(gis_context, result))) {
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LOG_WARN("eval st coveredBy failed", K(ret));
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ObGeoExprUtils::geo_func_error_handle(ret, N_PRIV_ST_COVERS);
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} else {
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res.set_bool(result);
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}
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}
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return ret;
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}
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int ObExprPrivSTCovers::eval_st_covers(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res)
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{
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int ret = OB_SUCCESS;
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ObDatum *gis_datum1 = NULL;
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ObDatum *gis_datum2 = NULL;
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ObString wkb1;
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ObString wkb2;
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ObExpr *gis_arg1 = expr.args_[0];
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ObExpr *gis_arg2 = expr.args_[1];
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ObObjType input_type1 = gis_arg1->datum_meta_.type_;
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ObObjType input_type2 = gis_arg2->datum_meta_.type_;
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ObEvalCtx::TempAllocGuard tmp_alloc_g(ctx);
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common::ObArenaAllocator &temp_allocator = tmp_alloc_g.get_allocator();
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if (OB_FAIL(gis_arg1->eval(ctx, gis_datum1)) || OB_FAIL(gis_arg2->eval(ctx, gis_datum2))) {
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LOG_WARN("eval geo args failed", K(ret));
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} else if (gis_datum1->is_null() || gis_datum2->is_null()) {
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res.set_null();
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} else if (FALSE_IT(wkb1 = gis_datum1->get_string())) {
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} else if (FALSE_IT(wkb2 = gis_datum2->get_string())) {
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} else if (OB_FAIL(ObTextStringHelper::read_real_string_data(temp_allocator, *gis_datum1,
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gis_arg1->datum_meta_, gis_arg1->obj_meta_.has_lob_header(), wkb1))) {
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LOG_WARN("fail to get real string data", K(ret), K(wkb1));
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} else if (OB_FAIL(ObTextStringHelper::read_real_string_data(temp_allocator, *gis_datum2,
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gis_arg2->datum_meta_, gis_arg2->obj_meta_.has_lob_header(), wkb2))) {
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LOG_WARN("fail to get real string data", K(ret), K(wkb2));
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} else if (OB_FAIL(ObExprPrivSTCovers::eval_st_covers_common(ctx,
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temp_allocator,
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wkb1,
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wkb2,
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res))) {
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LOG_WARN("eval st covers failed", K(ret));
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}
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return ret;
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}
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int ObExprPrivSTCovers::cg_expr(ObExprCGCtx &expr_cg_ctx, const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const
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{
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UNUSED(expr_cg_ctx);
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UNUSED(raw_expr);
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rt_expr.eval_func_ = eval_st_covers;
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return OB_SUCCESS;
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}
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}
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}
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