hash_join_iterator.cc File Reference

#include "sql/iterators/hash_join_iterator.h"
#include <assert.h>
#include <algorithm>
#include <atomic>
#include <cmath>
#include <memory>
#include <optional>
#include <utility>
#include <vector>
#include "field_types.h"
#include "my_alloc.h"
#include "my_bit.h"
#include "my_inttypes.h"
#include "my_sys.h"
#include "my_xxhash.h"
#include "mysql/components/services/bits/psi_bits.h"
#include "mysqld_error.h"
#include "sql/item.h"
#include "sql/item_cmpfunc.h"
#include "sql/iterators/hash_join_buffer.h"
#include "sql/iterators/row_iterator.h"
#include "sql/pfs_batch_mode.h"
#include "sql/sql_class.h"
#include "sql/sql_list.h"
#include "sql/system_variables.h"
#include "sql/table.h"

Functions
static void	MarkCopyBlobsIfTableContainsGeometry (const pack_rows::TableCollection &table_collection)
static bool	ConstructJoinKey (THD *thd, const Prealloced_array< HashJoinCondition, 4 > &join_conditions, table_map tables_bitmap, String *join_key_buffer)
static bool	WriteRowToChunk (THD *thd, Mem_root_array< ChunkPair > *chunks, bool write_to_build_chunk, const pack_rows::TableCollection &tables, const Prealloced_array< HashJoinCondition, 4 > &join_conditions, const uint32 xxhash_seed, bool row_has_match, bool store_row_with_null_in_join_key, String *join_key_and_row_buffer)
static bool	WriteRowsToChunks (THD *thd, RowIterator *iterator, const pack_rows::TableCollection &tables, const Prealloced_array< HashJoinCondition, 4 > &join_conditions, const uint32 xxhash_seed, Mem_root_array< ChunkPair > *chunks, bool write_to_build_chunk, bool write_rows_with_null_in_join_key, table_map tables_to_get_rowid_for, String *join_key_buffer)
static bool	InitializeChunkFiles (size_t estimated_rows_produced_by_join, size_t rows_in_hash_table, size_t max_chunk_files, const pack_rows::TableCollection &probe_tables, const pack_rows::TableCollection &build_tables, bool include_match_flag_for_probe, Mem_root_array< ChunkPair > *chunk_pairs)

Variables
static constexpr size_t	kZeroKeyLengthHash = 2669509769

Function Documentation

ConstructJoinKey()

static bool ConstructJoinKey ( THD *  thd, const Prealloced_array< HashJoinCondition, 4 > &  join_conditions, table_map  tables_bitmap, String *  join_key_buffer  )

static

InitializeChunkFiles()

static bool InitializeChunkFiles ( size_t  estimated_rows_produced_by_join, size_t  rows_in_hash_table, size_t  max_chunk_files, const pack_rows::TableCollection &  probe_tables, const pack_rows::TableCollection &  build_tables, bool  include_match_flag_for_probe, Mem_root_array< ChunkPair > *  chunk_pairs  )

static

MarkCopyBlobsIfTableContainsGeometry()

static void MarkCopyBlobsIfTableContainsGeometry ( const pack_rows::TableCollection &  table_collection )

static

WriteRowsToChunks()

static bool WriteRowsToChunks ( THD *  thd, RowIterator *  iterator, const pack_rows::TableCollection &  tables, const Prealloced_array< HashJoinCondition, 4 > &  join_conditions, const uint32  xxhash_seed, Mem_root_array< ChunkPair > *  chunks, bool  write_to_build_chunk, bool  write_rows_with_null_in_join_key, table_map  tables_to_get_rowid_for, String *  join_key_buffer  )

static

WriteRowToChunk()

static bool WriteRowToChunk ( THD *  thd, Mem_root_array< ChunkPair > *  chunks, bool  write_to_build_chunk, const pack_rows::TableCollection &  tables, const Prealloced_array< HashJoinCondition, 4 > &  join_conditions, const uint32  xxhash_seed, bool  row_has_match, bool  store_row_with_null_in_join_key, String *  join_key_and_row_buffer  )

static

Variable Documentation

kZeroKeyLengthHash

constexpr size_t kZeroKeyLengthHash = 2669509769

staticconstexpr