patch 4.0
This commit is contained in:
@ -17,66 +17,33 @@
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#include "sql/session/ob_sql_session_info.h"
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#include "lib/number/ob_number_v2.h"
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namespace oceanbase {
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namespace oceanbase
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{
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using namespace oceanbase::common;
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namespace sql {
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ObExprLn::ObExprLn(ObIAllocator& alloc) : ObFuncExprOperator(alloc, T_FUN_SYS_LN, N_LN, 1, NOT_ROW_DIMENSION)
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{}
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namespace sql
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{
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ObExprLn::ObExprLn(ObIAllocator &alloc)
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: ObFuncExprOperator(alloc, T_FUN_SYS_LN, N_LN, 1, NOT_ROW_DIMENSION)
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{
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}
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ObExprLn::~ObExprLn()
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{}
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{
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}
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int ObExprLn::calc_result_type1(ObExprResType& type, ObExprResType& type1, common::ObExprTypeCtx& type_ctx) const
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int ObExprLn::calc_result_type1(ObExprResType &type,
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ObExprResType &type1,
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common::ObExprTypeCtx &type_ctx) const
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{
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return calc_trig_function_result_type1(type, type1, type_ctx);
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}
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int ObExprLn::calc_result1(ObObj& result, const ObObj& obj, ObExprCtx& expr_ctx) const
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int calc_ln_expr_mysql(const ObExpr &expr, ObEvalCtx &ctx,
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ObDatum &res_datum)
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{
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int ret = OB_SUCCESS;
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if (OB_ISNULL(expr_ctx.calc_buf_)) {
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ret = OB_NOT_INIT;
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LOG_WARN("varchar buffer not init", K(ret));
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} else if (obj.is_null()) {
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result.set_null();
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} else if (obj.is_number()) {
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const number::ObNumber arg_number = obj.get_number();
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number::ObNumber result_number;
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common::ObIAllocator& allocator = *(expr_ctx.calc_buf_);
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if (OB_FAIL(arg_number.ln(result_number, allocator))) {
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LOG_WARN("ln failed", K(ret), K(arg_number), K(result_number));
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} else {
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result.set_number(result_number);
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}
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} else if (obj.is_double()) {
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double value = obj.get_double();
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if (!share::is_oracle_mode()) {
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if (value <= 0) {
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// from ob_expr_log2.cpp
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LOG_USER_WARN(OB_EER_INVALID_ARGUMENT_FOR_LOGARITHM);
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result.set_null();
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} else {
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result.set_double(std::log(value)); // std::log() is base-e
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}
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} else {
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if (value <= 0) {
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ret = OB_NUMERIC_OVERFLOW;
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} else {
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result.set_double(std::log(value)); // std::log() is base-e
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}
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}
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} else {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("obj type should be number or double", K(obj), K(ret));
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}
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return ret;
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}
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int calc_ln_expr_mysql(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res_datum)
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{
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int ret = OB_SUCCESS;
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ObDatum* arg = NULL;
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ObDatum *arg = NULL;
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if (OB_FAIL(expr.args_[0]->eval(ctx, arg))) {
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LOG_WARN("eval arg failed", K(ret), K(expr));
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} else if (arg->is_null()) {
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@ -93,19 +60,21 @@ int calc_ln_expr_mysql(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res_datum)
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return ret;
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}
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int calc_ln_expr_oracle_double(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res_datum)
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int calc_ln_expr_oracle_double(const ObExpr &expr, ObEvalCtx &ctx,
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ObDatum &res_datum)
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{
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int ret = OB_SUCCESS;
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ObDatum* arg = NULL;
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ObDatum *arg = NULL;
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if (OB_FAIL(expr.args_[0]->eval(ctx, arg))) {
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LOG_WARN("eval arg failed", K(ret), K(expr));
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} else if (arg->is_null()) {
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res_datum.set_null();
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} else {
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double val = arg->get_double();
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if (val <= 0) {
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ret = OB_NUMERIC_OVERFLOW;
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LOG_WARN("arg must be greater than zero for ln expr", K(ret), K(val));
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if (val == 0) {
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res_datum.set_double(-INFINITY);
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} else if (val < 0) {
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res_datum.set_double(NAN);
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} else {
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res_datum.set_double(std::log(val));
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}
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@ -113,10 +82,11 @@ int calc_ln_expr_oracle_double(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res_
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return ret;
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}
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int calc_ln_expr_oracle_number(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res_datum)
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int calc_ln_expr_oracle_number(const ObExpr &expr, ObEvalCtx &ctx,
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ObDatum &res_datum)
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{
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int ret = OB_SUCCESS;
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ObDatum* arg = NULL;
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ObDatum *arg = NULL;
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if (OB_FAIL(expr.args_[0]->eval(ctx, arg))) {
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LOG_WARN("eval arg failed", K(ret), K(expr));
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} else if (arg->is_null()) {
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@ -124,7 +94,8 @@ int calc_ln_expr_oracle_number(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res_
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} else {
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const number::ObNumber arg_nmb(arg->get_number());
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number::ObNumber res_nmb;
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if (OB_FAIL(arg_nmb.ln(res_nmb, ctx.get_reset_tmp_alloc()))) {
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ObEvalCtx::TempAllocGuard alloc_guard(ctx);
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if (OB_FAIL(arg_nmb.ln(res_nmb, alloc_guard.get_allocator()))) {
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LOG_WARN("calc ln failed", K(ret), K(arg_nmb), K(res_nmb));
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} else {
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res_datum.set_number(res_nmb);
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@ -133,7 +104,8 @@ int calc_ln_expr_oracle_number(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res_
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return ret;
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}
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int ObExprLn::cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const
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int ObExprLn::cg_expr(ObExprCGCtx &expr_cg_ctx, 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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UNUSED(expr_cg_ctx);
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@ -143,7 +115,7 @@ int ObExprLn::cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExp
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LOG_WARN("invalid arg_cnt_ of expr", K(ret), K(rt_expr));
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} else {
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ObObjType arg_res_type = rt_expr.args_[0]->datum_meta_.type_;
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if (!share::is_oracle_mode()) {
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if (!lib::is_oracle_mode()) {
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if (ObDoubleType == arg_res_type) {
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rt_expr.eval_func_ = calc_ln_expr_mysql;
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} else {
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@ -157,12 +129,13 @@ int ObExprLn::cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExp
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rt_expr.eval_func_ = calc_ln_expr_oracle_number;
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} else {
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ret = OB_ERR_UNEXPECTED;
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LOG_WARN("arg type must be double or number in oracle mode", K(ret), K(arg_res_type), K(rt_expr));
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LOG_WARN("arg type must be double or number in oracle mode", K(ret),
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K(arg_res_type), K(rt_expr));
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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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} // namespace sql
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} // namespace oceanbase
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} // namespace sql
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} // namespace oceanbase
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