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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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63
src/sql/engine/expr/ob_expr_nullif.h
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@ -15,34 +15,49 @@
#include "sql/engine/expr/ob_expr_operator.h"
namespace oceanbase {
namespace sql {
class ObExprNullif : public ObFuncExprOperator {
namespace oceanbase
{
namespace sql
{
class ObExprNullif : public ObFuncExprOperator
{
public:
explicit ObExprNullif(common::ObIAllocator& alloc);
virtual ~ObExprNullif(){};
virtual int calc_result_typeN(
ObExprResType& type, ObExprResType* types, int64_t param_num, common::ObExprTypeCtx& type_ctx) const;
virtual int calc_resultN(
common::ObObj& result, const common::ObObj* objs_stack, int64_t param_num, common::ObExprCtx& expr_ctx) const;
virtual int cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const override;
static int eval_nullif(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res);
void set_first_param_flag(bool flag)
{
first_param_can_be_null_ = flag;
}
explicit ObExprNullif(common::ObIAllocator &alloc);
virtual ~ObExprNullif() {};
virtual int calc_result_type2(ObExprResType &type,
ObExprResType &type1,
ObExprResType &type2,
common::ObExprTypeCtx &type_ctx) const;
virtual int cg_expr(ObExprCGCtx &expr_cg_ctx, const ObRawExpr &raw_expr,
ObExpr &rt_expr) const override;
static int cast_param(const ObExpr &src_expr, ObEvalCtx &ctx,
const ObDatumMeta &dst_meta,
const ObCastMode &cm, ObIAllocator &allocator,
ObDatum &res_datum);
static int cast_result(const ObExpr &src_expr, const ObExpr &dst_expr, ObEvalCtx &ctx,
const ObCastMode &cm, ObDatum &expr_datum);
static int eval_nullif(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res);
static int eval_nullif_enumset(const ObExpr &expr, ObEvalCtx &ctx, ObDatum &res);
int set_extra_info(ObExprCGCtx &expr_cg_ctx, const ObObjType cmp_type,
const ObCollationType cmp_cs_type, const ObScale scale,
ObExpr &rt_expr) const;
void set_first_param_flag(bool flag) { first_param_can_be_null_ = flag; }
protected:
bool first_param_can_be_null_;
private:
int deduce_type(
ObExprResType& type, ObExprResType& type1, ObExprResType& type2, common::ObExprTypeCtx& type_ctx) const;
int se_deduce_type(ObExprResType& type, ObExprResType& cmp_type, const ObExprResType& type1,
const ObExprResType& type2, common::ObExprTypeCtx& type_ctx) const;
int deduce_type(ObExprResType &type,
ObExprResType &type1,
ObExprResType &type2,
common::ObExprTypeCtx &type_ctx) const;
int se_deduce_type(ObExprResType &type,
ObExprResType &cmp_type,
ObExprResType &type1,
ObExprResType &type2,
common::ObExprTypeCtx &type_ctx) const;
DISALLOW_COPY_AND_ASSIGN(ObExprNullif);
};
} // namespace sql
} // namespace oceanbase
#endif // OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_NULLIF_
} // namespace sql
} // namespace oceanbase
#endif // OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_NULLIF_