Struct FilterSelectivity¶

struct FilterSelectivity¶

Statistics stored for filters with respect to a table, so that selective filters can be pushed down in join operations.

Public Functions

size_t getRowsPassingUpperBound() const¶

bool isFilterSelectiveEnough() const¶

Public Members

const bool is_valid¶

const float fraction_passing¶

const size_t total_rows_upper_bound¶

Public Static Attributes

constexpr float kFractionPassingLowThreshold = 0.1¶

constexpr float kFractionPassingHighThreshold = 0.5¶

constexpr size_t kRowsPassingUpperBoundThreshold = 4000000¶