83 lines
2.4 KiB
C++
83 lines
2.4 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.
|
|
*/
|
|
|
|
#define USING_LOG_PREFIX SQL_ENG
|
|
|
|
#include "sql/engine/expr/ob_expr_sql_mode_convert.h"
|
|
#include "common/sql_mode/ob_sql_mode_utils.h"
|
|
|
|
using namespace oceanbase::common;
|
|
|
|
namespace oceanbase
|
|
{
|
|
namespace sql
|
|
{
|
|
|
|
ObExprSqlModeConvert::ObExprSqlModeConvert(ObIAllocator &alloc)
|
|
: ObStringExprOperator(alloc, T_FUN_SYS_SQL_MODE_CONVERT, N_SQL_MODE_CONVERT, 1)
|
|
{
|
|
}
|
|
|
|
ObExprSqlModeConvert::~ObExprSqlModeConvert()
|
|
{
|
|
}
|
|
|
|
int ObExprSqlModeConvert::calc_result_type1(ObExprResType &type,
|
|
ObExprResType &type1,
|
|
common::ObExprTypeCtx &type_ctx) const
|
|
{
|
|
UNUSED(type_ctx);
|
|
UNUSED(type1);
|
|
|
|
int ret = OB_SUCCESS;
|
|
type.set_varchar();
|
|
type.set_default_collation_type();
|
|
type.set_collation_level(CS_LEVEL_SYSCONST);
|
|
type.set_length(static_cast<common::ObLength>(OB_MAX_SYS_VAR_VAL_LENGTH));
|
|
return ret;
|
|
}
|
|
|
|
int ObExprSqlModeConvert::sql_mode_convert(const ObExpr &expr,
|
|
ObEvalCtx &ctx,
|
|
ObDatum &expr_datum)
|
|
{
|
|
int ret = OB_SUCCESS;
|
|
ObDatum *arg = NULL;
|
|
if (OB_FAIL(expr.args_[0]->eval(ctx, arg))) {
|
|
LOG_WARN("eval arg failed", K(ret));
|
|
} else if (arg->is_null()) {
|
|
expr_datum.set_null();
|
|
} else {
|
|
ObObj int_value;
|
|
ObObj str_value;
|
|
int_value.set_uint64(arg->get_uint64());
|
|
if (OB_FAIL(common::ob_sql_mode_to_str(int_value, str_value, &ctx.get_expr_res_alloc()))) {
|
|
LOG_WARN("convert sql mode failed", K(ret));
|
|
} else {
|
|
expr_datum.set_string(str_value.get_string());
|
|
}
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int ObExprSqlModeConvert::cg_expr(ObExprCGCtx &op_cg_ctx,
|
|
const ObRawExpr &raw_expr,
|
|
ObExpr &rt_expr) const
|
|
{
|
|
UNUSED(raw_expr);
|
|
UNUSED(op_cg_ctx);
|
|
rt_expr.eval_func_ = ObExprSqlModeConvert::sql_mode_convert;
|
|
return OB_SUCCESS;
|
|
}
|
|
|
|
}
|
|
} |