67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
/**
|
|
* Copyright (c) 2021 OceanBase
|
|
* OceanBase CE is licensed under Mulan PubL v2.
|
|
* You can use this software according to the terms and conditions of the Mulan PubL v2.
|
|
* You may obtain a copy of Mulan PubL v2 at:
|
|
* http://license.coscl.org.cn/MulanPubL-2.0
|
|
* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
|
|
* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
|
|
* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
|
|
* See the Mulan PubL v2 for more details.
|
|
*/
|
|
|
|
#include "sql/engine/expr/ob_expr_obversion.h"
|
|
|
|
using namespace oceanbase::common;
|
|
|
|
namespace oceanbase
|
|
{
|
|
namespace sql
|
|
{
|
|
|
|
ObExprObVersion::ObExprObVersion(ObIAllocator &alloc)
|
|
: ObStringExprOperator(alloc, T_FUN_SYS_OB_VERSION, N_OB_VERSION, 0, NOT_VALID_FOR_GENERATED_COL)
|
|
{
|
|
}
|
|
|
|
ObExprObVersion::~ObExprObVersion()
|
|
{
|
|
}
|
|
|
|
int ObExprObVersion::calc_result_type0(ObExprResType &type, ObExprTypeCtx &type_ctx) const
|
|
{
|
|
UNUSED(type_ctx);
|
|
type.set_varchar();
|
|
type.set_length(static_cast<common::ObLength>(strlen(PACKAGE_VERSION)));
|
|
type.set_default_collation_type();
|
|
type.set_collation_level(CS_LEVEL_SYSCONST);
|
|
return OB_SUCCESS;
|
|
}
|
|
|
|
int ObExprObVersion::eval_version(const ObExpr &expr,
|
|
ObEvalCtx &ctx,
|
|
ObDatum &expr_datum)
|
|
{
|
|
UNUSED(expr);
|
|
UNUSED(ctx);
|
|
int ret = OB_SUCCESS;
|
|
if (OB_SUCC(ret)) {
|
|
expr_datum.set_string(common::ObString(PACKAGE_VERSION));
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int ObExprObVersion::cg_expr(ObExprCGCtx &op_cg_ctx,
|
|
const ObRawExpr &raw_expr,
|
|
ObExpr &rt_expr) const
|
|
{
|
|
UNUSED(raw_expr);
|
|
UNUSED(op_cg_ctx);
|
|
int ret = OB_SUCCESS;
|
|
rt_expr.eval_func_ = ObExprObVersion::eval_version;
|
|
return ret;
|
|
}
|
|
|
|
} // namespace sql
|
|
} // namespace oceanbase
|