duckdb::ValidityUncompressed Struct Reference

Static Public Member Functions
static CompressionFunction	GetFunction (PhysicalType data_type)
static void	AlignedScan (data_ptr_t input, idx_t input_start, Vector &result, idx_t scan_count)
static void	UnalignedScan (data_ptr_t input, idx_t input_size, idx_t input_start, Vector &result, idx_t result_offset, idx_t scan_count)

Static Public Attributes
static const validity_t	LOWER_MASKS [65]
static const validity_t	UPPER_MASKS [65]

Member Function Documentation

UnalignedScan()

static void duckdb::ValidityUncompressed::UnalignedScan ( data_ptr_t  input, idx_t  input_size, idx_t  input_start, Vector &  result, idx_t  result_offset, idx_t  scan_count  )

static

ANDs scan_count validity bits from input (starting at input_start) into the result validity mask (starting at result_offset). If a bit in the result is already invalid (0), it remains invalid regardless of the input bit value - i.e., the operation is result[i] &= input[i]. This function should be used, as the name suggests, if the starting points are unaligned relative to ValidityMask::BITS_PER_VALUE, otherwise AlignedScan should be used (however this function will still work).

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The documentation for this struct was generated from the following file:

• external/duckdb/duckdb.cpp