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reformat source code

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according to code styles, 'AccessModifierOffset' should be -2.
This commit is contained in:
gm
2021-06-16 15:48:42 +08:00
committed by MizuhaHimuraki
parent 8c4a2f26a6
commit 4a92b6d7df
3314 changed files with 23131 additions and 23401 deletions
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22
src/sql/engine/expr/ob_expr_estimate_ndv.h
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@ -18,19 +18,15 @@
namespace oceanbase {
namespace sql {
class ObExprEstimateNdv : public ObFuncExprOperator {
public:
public:
explicit ObExprEstimateNdv(common::ObIAllocator& alloc);
virtual ~ObExprEstimateNdv();
virtual int calc_result_type1(ObExprResType &type,
ObExprResType &type1,
common::ObExprTypeCtx &type_ctx) const override;
virtual int calc_result1(common::ObObj &result,
const common::ObObj &obj,
common::ObExprCtx &expr_ctx) const override;
static int llc_estimate_ndv(common::ObObj &result, const common::ObObj &obj,
common::ObExprCtx &expr_ctx);
static void llc_estimate_ndv(int64_t &result, const common::ObString &bitmap_str);
static int llc_estimate_ndv(double &estimate_ndv, const common::ObString &bitmap_buf);
virtual int calc_result_type1(
ObExprResType& type, ObExprResType& type1, common::ObExprTypeCtx& type_ctx) const override;
virtual int calc_result1(common::ObObj& result, const common::ObObj& obj, common::ObExprCtx& expr_ctx) const override;
static int llc_estimate_ndv(common::ObObj& result, const common::ObObj& obj, common::ObExprCtx& expr_ctx);
static void llc_estimate_ndv(int64_t& result, const common::ObString& bitmap_str);
static int llc_estimate_ndv(double& estimate_ndv, const common::ObString& bitmap_buf);
// high several bits of hash value are used to store bucket_id, the param value must
// remove these bits by left shift, the count of valid bits after removing is bit_width.
static uint64_t llc_leading_zeros(uint64_t value, uint64_t bit_width);
@ -39,13 +35,13 @@ class ObExprEstimateNdv : public ObFuncExprOperator {
virtual int cg_expr(ObExprCGCtx& expr_cg_ctx, const ObRawExpr& raw_expr, ObExpr& rt_expr) const override;
static int calc_estimate_ndv_expr(const ObExpr& expr, ObEvalCtx& ctx, ObDatum& res_datum);
private:
private:
static inline double llc_alpha_times_m_square(const uint64_t m);
// the count of buckets should be between 16 and 65536, according to Google's HLLC paper.
static const int LLC_NUM_BUCKETS_MIN = (1 << 4);
static const int LLC_NUM_BUCKETS_MAX = (1 << 16);
private:
private:
DISALLOW_COPY_AND_ASSIGN(ObExprEstimateNdv);
};
} /* namespace sql */