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468ce27c9e
git-svn-id: file:///svn/mysql/tokudb-engine/src@16274 c7de825b-a66e-492c-adef-691d508d4ae1
111 lines
2.3 KiB
C
Executable file
111 lines
2.3 KiB
C
Executable file
#ifndef _HATOKU_CMP
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#define _HATOKU_CMP
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#include "mysql_priv.h"
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extern "C" {
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#include "stdint.h"
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}
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#include <db.h>
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typedef enum {
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toku_type_int = 0,
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toku_type_double,
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toku_type_float,
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toku_type_fixbinary,
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toku_type_fixstring,
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toku_type_varbinary,
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toku_type_varstring,
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toku_type_blob,
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toku_type_hpk, //for hidden primary key
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toku_type_unknown
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} TOKU_TYPE;
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TOKU_TYPE mysql_to_toku_type (Field* field);
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uchar* pack_toku_key_field(
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uchar* to_tokudb,
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uchar* from_mysql,
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Field* field,
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u_int32_t key_part_length //I really hope this is temporary as I phase out the pack_cmp stuff
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);
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uchar* pack_key_toku_key_field(
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uchar* to_tokudb,
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uchar* from_mysql,
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Field* field,
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u_int32_t key_part_length //I really hope this is temporary as I phase out the pack_cmp stuff
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);
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uchar* unpack_toku_key_field(
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uchar* to_mysql,
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uchar* from_tokudb,
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Field* field,
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u_int32_t key_part_length
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);
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//
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// for storing NULL byte in keys
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//
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#define NULL_COL_VAL 0
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#define NONNULL_COL_VAL 1
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//
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// for storing if rest of key is +/- infinity
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//
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#define COL_NEG_INF -1
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#define COL_ZERO 0
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#define COL_POS_INF 1
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//
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// information for hidden primary keys
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//
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#define TOKUDB_HIDDEN_PRIMARY_KEY_LENGTH 8
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//
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// function to convert a hidden primary key into a byte stream that can be stored in DBT
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//
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inline void hpk_num_to_char(uchar* to, ulonglong num) {
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int8store(to, num);
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}
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//
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// function that takes a byte stream of a hidden primary key and returns a ulonglong
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//
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inline ulonglong hpk_char_to_num(uchar* val) {
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return uint8korr(val);
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}
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int tokudb_compare_two_keys(
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const void* new_key_data,
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const u_int32_t new_key_size,
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const void* saved_key_data,
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const u_int32_t saved_key_size,
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const void* row_desc,
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const u_int32_t row_desc_size,
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bool cmp_prefix
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);
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int tokudb_cmp_dbt_key(DB *file, const DBT *keya, const DBT *keyb);
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//TODO: QQQ Only do one direction for prefix.
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int tokudb_prefix_cmp_dbt_key(DB *file, const DBT *keya, const DBT *keyb);
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int create_toku_key_descriptor(
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uchar* buf,
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bool is_first_hpk,
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KEY* first_key,
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bool is_second_hpk,
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KEY* second_key
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);
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#endif
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