53 lines
1.5 KiB
C++
53 lines
1.5 KiB
C++
// Copyright 2010-2018 Alibaba Inc. All Rights Reserved.
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// Author:
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//
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#define USING_LOG_PREFIX SQL_OPT
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#include "sql/optimizer/ob_log_link_scan.h"
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#include "sql/resolver/expr/ob_expr_info_flag.h"
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using namespace oceanbase::sql;
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using namespace oceanbase::common;
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using namespace oceanbase::sql::log_op_def;
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namespace oceanbase
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{
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namespace sql
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{
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ObLogLinkScan::ObLogLinkScan(ObLogPlan &plan)
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: ObLogLink(plan)
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{}
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int ObLogLinkScan::allocate_expr_post(ObAllocExprContext &ctx)
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{
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int ret = OB_SUCCESS;
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const ObSelectStmt *stmt = NULL;
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if (OB_ISNULL(get_plan()) ||
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OB_ISNULL(stmt = static_cast<const ObSelectStmt *>(get_plan()->get_stmt()))) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("get unexpected null", K(get_plan()), K(stmt), K(ret));
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}
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for (int64_t i = 0; OB_SUCC(ret) && i < stmt->get_select_item_size(); ++i) {
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ObRawExpr *expr = stmt->get_select_item(i).expr_;
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if (OB_ISNULL(expr)) {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("null expr", K(ret));
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} else if (OB_FAIL(mark_expr_produced(expr,
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branch_id_,
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id_,
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ctx))) {
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LOG_WARN("failed to mark expr as produced", K(branch_id_), K(ret));
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}
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}
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if (OB_SUCC(ret)) {
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if (OB_FAIL(ObLogicalOperator::allocate_expr_post(ctx))) {
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LOG_WARN("failed to allocate_expr_post", K(ret));
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} else { /*do nothing*/ }
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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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