101 lines
3.3 KiB
C++
101 lines
3.3 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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*/
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#define USING_LOG_PREFIX SQL_ENG
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#include "sql/engine/expr/ob_expr_effective_tenant_id.h"
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#include "sql/engine/ob_physical_plan_ctx.h"
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#include "lib/mysqlclient/ob_mysql_result.h"
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#include "lib/mysqlclient/ob_mysql_transaction.h"
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#include "lib/string/ob_sql_string.h"
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#include "lib/mysqlclient/ob_mysql_proxy.h"
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#include "lib/oblog/ob_log_module.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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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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ObExprEffectiveTenantId::ObExprEffectiveTenantId(ObIAllocator &alloc)
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: ObFuncExprOperator(alloc, T_FUN_SYS_EFFECTIVE_TENANT_ID,
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N_EFFECTIVE_TENANT_ID, 0, NOT_ROW_DIMENSION)
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{
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}
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ObExprEffectiveTenantId::~ObExprEffectiveTenantId()
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{
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}
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int ObExprEffectiveTenantId::calc_result_type0(ObExprResType &type,
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ObExprTypeCtx &type_ctx) const
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{
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UNUSED(type_ctx);
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const bool is_oracle = lib::is_oracle_mode();
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if (is_oracle) {
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type.set_type(ObNumberType);
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type.set_precision(ObAccuracy::DDL_DEFAULT_ACCURACY2[is_oracle][ObNumberType].precision_);
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type.set_scale(ObAccuracy::DDL_DEFAULT_ACCURACY2[is_oracle][ObNumberType].scale_);
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} else {
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type.set_type(ObUInt64Type);
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type.set_precision(ObAccuracy::DDL_DEFAULT_ACCURACY[ObUInt64Type].precision_);
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type.set_scale(ObAccuracy::DDL_DEFAULT_ACCURACY[ObUInt64Type].scale_);
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}
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return OB_SUCCESS;
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}
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int ObExprEffectiveTenantId::eval_effective_tenant_id(const ObExpr &expr, ObEvalCtx &ctx,
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ObDatum &expr_datum)
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{
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int ret = OB_SUCCESS;
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UNUSED(expr);
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const ObBasicSessionInfo *session_info = NULL;
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if (OB_ISNULL(session_info = ctx.exec_ctx_.get_my_session())) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("session info is null", K(ret));
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} else {
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const uint64_t effective_tenant_id = session_info->get_effective_tenant_id();
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if (OB_UNLIKELY(effective_tenant_id == OB_INVALID_ID)) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("effective tanent id is invalid", K(ret));
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} else {
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if (lib::is_oracle_mode()) {
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char local_buff[number::ObNumber::MAX_BYTE_LEN];
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ObDataBuffer local_alloc(local_buff, number::ObNumber::MAX_BYTE_LEN);
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number::ObNumber num;
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if (OB_FAIL(num.from(effective_tenant_id, local_alloc))) {
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LOG_WARN("failed to convert int to number", K(ret));
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} else {
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expr_datum.set_number(num);
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}
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} else {
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expr_datum.set_uint(effective_tenant_id);
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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 ObExprEffectiveTenantId::cg_expr(ObExprCGCtx &op_cg_ctx, const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const
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{
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UNUSED(raw_expr);
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UNUSED(op_cg_ctx);
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rt_expr.eval_func_ = ObExprEffectiveTenantId::eval_effective_tenant_id;
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return OB_SUCCESS;
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}
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}/* ns sql*/
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}/* ns oceanbase */
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