24962e3cee
Co-authored-by: SuperYoko <lipeng.yk@gmail.com> Co-authored-by: skylhd <dickylhd@gmail.com> Co-authored-by: wz-WillZheng <18701736737@163.com>
109 lines
4.0 KiB
C++
109 lines
4.0 KiB
C++
/**
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* Copyright (c) 2023 OceanBase
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* OceanBase 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 STORAGE_FTS
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#include "sql/engine/expr/ob_expr_doc_id.h"
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#include "sql/engine/ob_exec_context.h"
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#include "share/ob_tablet_autoincrement_service.h"
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namespace oceanbase
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{
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using namespace common;
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namespace sql
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{
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ObExprDocID::ObExprDocID(ObIAllocator &allocator)
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: ObFuncExprOperator(allocator, T_FUN_SYS_DOC_ID, N_DOC_ID, ZERO_OR_ONE, VALID_FOR_GENERATED_COL, NOT_ROW_DIMENSION)
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{
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need_charset_convert_ = false;
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STORAGE_FTS_LOG(DEBUG, "construct doc id expr", K(common::lbt()));
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}
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int ObExprDocID::calc_result_typeN(ObExprResType &type,
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ObExprResType *types,
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int64_t param_num,
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ObExprTypeCtx &type_ctx) const
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{
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int ret = OB_SUCCESS;
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UNUSEDx(param_num, types);
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type.set_varbinary();
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type.set_length(sizeof(ObDocId));
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return ret;
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}
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int ObExprDocID::calc_resultN(ObObj &result,
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const ObObj *objs_array,
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int64_t param_num,
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ObExprCtx &expr_ctx) const
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{
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return OB_NOT_SUPPORTED;
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}
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int ObExprDocID::cg_expr(
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ObExprCGCtx &cg_ctx,
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const ObRawExpr &raw_expr,
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ObExpr &rt_expr) const
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{
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int ret = OB_SUCCESS;
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if (OB_UNLIKELY(ObVarcharType != rt_expr.datum_meta_.type_)) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("unexpected error, expr type isn't varchar", K(ret), K(rt_expr.datum_meta_.type_));
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} else if (OB_UNLIKELY(rt_expr.arg_cnt_ != 1 && rt_expr.arg_cnt_ != 0)) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("unexpected param count", K(rt_expr.arg_cnt_), K(rt_expr.args_), K(rt_expr.type_));
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} else if (OB_UNLIKELY(rt_expr.arg_cnt_ == 1) && OB_ISNULL(rt_expr.args_) ) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("unexpected error, rt_expr.args_ is nullptr", K(rt_expr.arg_cnt_), K(rt_expr.args_), K(rt_expr.type_));
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} else {
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rt_expr.eval_func_ = generate_doc_id;
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}
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return ret;
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}
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/*static*/ int ObExprDocID::generate_doc_id(
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const ObExpr &raw_ctx,
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ObEvalCtx &eval_ctx,
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ObDatum &expr_datum)
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{
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int ret = OB_SUCCESS;
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ObObjectID partition_id = OB_INVALID_ID;
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ObTabletID tablet_id;
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if (raw_ctx.arg_cnt_ == 0) {
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//expr_datum.set_null();
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LOG_TRACE("succeed to genearte empty document id", KP(&raw_ctx), K(raw_ctx), K(expr_datum), K(eval_ctx), K(lbt()));
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} else if (OB_UNLIKELY(1 != raw_ctx.arg_cnt_) || OB_ISNULL(raw_ctx.args_)) {
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ret = OB_INVALID_ARGUMENT;
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LOG_WARN("invalid arguments", K(ret), K(raw_ctx), KP(raw_ctx.args_));
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} else if (OB_FAIL(ObExprCalcPartitionBase::calc_part_and_tablet_id(raw_ctx.args_[0], eval_ctx, partition_id, tablet_id))) {
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LOG_WARN("fail to calc part and tablet id by expr", K(ret));
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} else {
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share::ObTabletAutoincrementService &auto_inc = share::ObTabletAutoincrementService::get_instance();
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uint64_t seq_id = 0;
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uint64_t buf_len = sizeof(ObDocId);
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uint64_t *buf = reinterpret_cast<uint64_t *>(raw_ctx.get_str_res_mem(eval_ctx, buf_len));
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if (OB_ISNULL(buf)) {
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ret = OB_ALLOCATE_MEMORY_FAILED;
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LOG_WARN("fail to allocate memory", K(ret), KP(buf));
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} else if (OB_FAIL(auto_inc.get_autoinc_seq(MTL_ID(), tablet_id, seq_id))) {
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LOG_WARN("fail to get tablet autoinc seq", K(ret), K(tablet_id));
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} else {
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ObDocId *doc_id = new (buf) ObDocId(tablet_id.id(), seq_id);
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expr_datum.set_string(doc_id->get_string());
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LOG_TRACE("succeed to genearte document id", K(tablet_id), K(seq_id));
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}
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}
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return ret;
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}
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} // namespace sql
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} // namespace oceanbase
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