81b8923b14
Co-authored-by: tushicheng <18829573815@163.com> Co-authored-by: HaHaJeff <jeffzhouhhh@gmail.com> Co-authored-by: dimstars <liangjinrongcm@gmail.com>
115 lines
3.9 KiB
C++
115 lines
3.9 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 st_valid.
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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_func_isvalid.h"
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#include "ob_expr_st_isvalid.h"
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#include "lib/geo/ob_srs_info.h"
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#include "observer/omt/ob_tenant_srs.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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ObExprSTIsValid::ObExprSTIsValid(ObIAllocator &alloc)
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: ObFuncExprOperator(alloc, T_FUN_SYS_ST_ISVALID, N_ST_ISVALID, 1, VALID_FOR_GENERATED_COL, NOT_ROW_DIMENSION)
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{
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}
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int ObExprSTIsValid::calc_result_type1(ObExprResType &type,
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ObExprResType &type1,
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common::ObExprTypeCtx &type_ctx) const
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{
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UNUSED(type_ctx);
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int ret = OB_SUCCESS;
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if (ob_is_null(type1.get_type())) {
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// do nothing
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} else if (ob_is_numeric_type(type1.get_type())) {
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type1.set_calc_type(ObLongTextType);
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} else if (!ob_is_geometry(type1.get_type()) && !ob_is_string_type(type1.get_type())) {
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ret = OB_ERR_GIS_INVALID_DATA;
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LOG_USER_ERROR(OB_ERR_GIS_INVALID_DATA, get_name());
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}
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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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return ret;
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}
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int ObExprSTIsValid::eval_st_isvalid(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res)
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{
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int ret = OB_SUCCESS;
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ObEvalCtx::TempAllocGuard tmp_alloc_g(ctx);
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common::ObArenaAllocator &tmp_allocator = tmp_alloc_g.get_allocator();
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ObDatum *datum = NULL;
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int num_args = expr.arg_cnt_;
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bool is_null_result = false;
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ObGeoSrid srid = 0;
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ObString wkb;
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omt::ObSrsCacheGuard srs_guard;
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const ObSrsItem *srs = NULL;
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ObGeometry *geo = NULL;
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bool is_geog = false;
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bool isvalid_res = false;
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if (OB_FAIL(expr.args_[0]->eval(ctx, datum))) {
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LOG_WARN("failed to eval first argument", K(ret));
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} else if (datum->is_null()) {
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is_null_result = true;
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} else {
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wkb = datum->get_string();
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if (OB_FAIL(ObTextStringHelper::read_real_string_data(tmp_allocator, *datum,
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expr.args_[0]->datum_meta_, expr.args_[0]->obj_meta_.has_lob_header(), wkb))) {
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LOG_WARN("fail to get real string data", K(ret), K(wkb));
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} else if (OB_FAIL(ObGeoExprUtils::get_srs_item(ctx, srs_guard, wkb, srs, true, N_ST_ISVALID))) {
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LOG_WARN("fail to get srs item", K(ret), K(wkb));
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} else if (OB_FAIL(ObGeoExprUtils::build_geometry(tmp_allocator, wkb, geo, srs, N_ST_ISVALID))) {
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LOG_WARN("failed to parse wkb", K(ret));
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}
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}
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if (OB_SUCC(ret)) {
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if (is_null_result) {
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res.set_null();
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} else {
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ObGeoEvalCtx gis_context(&tmp_allocator, srs);
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if (OB_FAIL(gis_context.append_geo_arg(geo))) {
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LOG_WARN("build geo gis context failed", K(ret));
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} else if (OB_FAIL(ObGeoFunc<ObGeoFuncType::IsValid>::geo_func::eval(gis_context, isvalid_res))) {
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LOG_WARN("eval geo func isvalid failed", K(ret));
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ObGeoExprUtils::geo_func_error_handle(ret, N_ST_ISVALID);
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} else {
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res.set_bool(isvalid_res);
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}
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}
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}
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return ret;
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}
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int ObExprSTIsValid::cg_expr(ObExprCGCtx &expr_cg_ctx, const ObRawExpr &raw_expr, ObExpr &rt_expr) const
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{
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UNUSEDx(expr_cg_ctx, raw_expr);
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rt_expr.eval_func_ = eval_st_isvalid;
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return OB_SUCCESS;
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}
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} // namespace sql
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} // namespace oceanbase
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