signet::forge::OffsetIndex Struct Reference

Page locations for random access within a column chunk. More...

#include <column_index.hpp>

Public Member Functions
bool	valid () const
	Check if deserialization was successful.
void	serialize (thrift::CompactEncoder &enc) const
	Serialize this OffsetIndex to a Thrift compact encoder.
void	deserialize (thrift::CompactDecoder &dec)
	Deserialize this OffsetIndex from a Thrift compact decoder.

Public Attributes
bool	valid_ = true
	False if deserialization failed (M-V7).
std::vector< PageLocation >	page_locations
	One entry per data page.

Detailed Description

Page locations for random access within a column chunk.

Contains a list of PageLocation entries, one per data page in the column chunk. Written to the Parquet file after row groups to enable readers to seek directly to any page.

See also

ColumnIndex (companion structure for predicate pushdown)

Definition at line 86 of file column_index.hpp.

Member Function Documentation

deserialize()

void signet::forge::OffsetIndex::deserialize ( thrift::CompactDecoder &  dec )

inline

Deserialize this OffsetIndex from a Thrift compact decoder.

Parameters

dec	The decoder to read from.

Definition at line 112 of file column_index.hpp.

serialize()

void signet::forge::OffsetIndex::serialize ( thrift::CompactEncoder &  enc ) const

inline

Serialize this OffsetIndex to a Thrift compact encoder.

Parameters

enc	The encoder to write to.

Definition at line 95 of file column_index.hpp.

valid()

bool signet::forge::OffsetIndex::valid ( ) const

inline

Check if deserialization was successful.

Definition at line 91 of file column_index.hpp.

Member Data Documentation

page_locations

std::vector<PageLocation> signet::forge::OffsetIndex::page_locations

One entry per data page.

Definition at line 88 of file column_index.hpp.

valid_

bool signet::forge::OffsetIndex::valid_ = true

False if deserialization failed (M-V7).

Definition at line 87 of file column_index.hpp.

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

• include/signet/column_index.hpp