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patch 4.0

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wangzelin.wzl
2022-10-24 10:34:53 +08:00
parent 4ad6e00ec3
commit 93a1074b0c
10533 changed files with 2588271 additions and 2299373 deletions
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74
src/sql/engine/expr/ob_expr_random.h
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@ -15,53 +15,53 @@
#include "sql/engine/expr/ob_expr_operator.h"
namespace oceanbase {
namespace sql {
class ObExprRandom : public ObFuncExprOperator {
namespace oceanbase
{
namespace sql
{
class ObExprRandom: public ObFuncExprOperator
{
OB_UNIS_VERSION(1);
class ObExprRandomCtx : public ObExprOperatorCtx {
public:
ObExprRandomCtx();
virtual ~ObExprRandomCtx();
void set_seed(uint32_t seed);
void get_next_random(double& res);
private:
static const uint64_t max_value_;
uint64_t seed1_;
uint64_t seed2_;
};
class ObExprRandomCtx: public ObExprOperatorCtx
{
public:
ObExprRandomCtx();
virtual ~ObExprRandomCtx();
void set_seed(uint32_t seed);
void get_next_random(double &res);
private:
static const uint64_t max_value_;
uint64_t seed1_;
uint64_t seed2_;
};
public:
explicit ObExprRandom(common::ObIAllocator& alloc);
virtual ~ObExprRandom();
virtual int calc_result_typeN(
ObExprResType& type, ObExprResType* types, int64_t param_num, common::ObExprTypeCtx& type_ctx) const override;
virtual int calc_resultN(
common::ObObj& result, const common::ObObj* objs, int64_t param_num, common::ObExprCtx& expr_ctx) const override;
inline void set_seed_const(bool is_seed_const);
explicit ObExprRandom(common::ObIAllocator &alloc);
virtual ~ObExprRandom();
virtual int calc_result_typeN(ObExprResType &type,
ObExprResType *types,
int64_t param_num,
common::ObExprTypeCtx &type_ctx) const;
inline void set_seed_const(bool is_seed_const);
// engine 3.0
virtual bool need_rt_ctx() const override
{
return true;
}
virtual int cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const override;
static int calc_random_expr_const_seed(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res_datum);
static int calc_random_expr_nonconst_seed(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res_datum);
virtual bool need_rt_ctx() const override { return true; }
virtual int cg_expr(ObExprCGCtx &expr_cg_ctx, const ObRawExpr &raw_expr,
ObExpr &rt_expr) const override;
static int calc_random_expr_const_seed(const ObExpr &expr, ObEvalCtx &ctx,
ObDatum &res_datum);
static int calc_random_expr_nonconst_seed(const ObExpr &expr, ObEvalCtx &ctx,
ObDatum &res_datum);
public:
virtual int assign(const ObExprOperator& other) override;
virtual int assign(const ObExprOperator &other) override;
private:
bool is_seed_const_;
// disallow copy
DISALLOW_COPY_AND_ASSIGN(ObExprRandom);
bool is_seed_const_;
// disallow copy
DISALLOW_COPY_AND_ASSIGN(ObExprRandom);
};
inline void ObExprRandom::set_seed_const(bool is_seed_const)
{
is_seed_const_ = is_seed_const;
is_seed_const_ = is_seed_const;
}
} /* namespace sql */
} /* namespace oceanbase */