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Viewing changes to storage/innobase/include/row0mysql.h

  • Committer: Brian Aker
  • Date: 2008-07-14 22:40:46 UTC
  • Revision ID: brian@tangent.org-20080714224046-x183907w9wp1txwv
Removed sql_manager. Ever heard of just setting up the OS to sync when you
want it to?

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storage/innobase/include/row0mysql.h
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        ulint   rec_field_no;           /* field number of the column in an
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                                        Innobase record in the current index;
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                                        not defined if template_type is
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                                        ROW_DRIZZLE_WHOLE_ROW */
 
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                                        ROW_MYSQL_WHOLE_ROW */
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        ulint   mysql_col_offset;       /* offset of the column in the MySQL
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                                        row format */
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        ulint   mysql_col_len;          /* length of the column in the MySQL
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        ulint   mysql_type;             /* MySQL type code; this is always
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                                        < 256 */
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        ulint   mysql_length_bytes;     /* if mysql_type
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                                        == DATA_DRIZZLE_TRUE_VARCHAR, this tells
 
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                                        == DATA_MYSQL_TRUE_VARCHAR, this tells
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                                        whether we should use 1 or 2 bytes to
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                                        store the MySQL true VARCHAR data
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                                        length at the start of row in the MySQL
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                                        it is an unsigned integer type */
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};
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#define DRIZZLE_FETCH_CACHE_SIZE                8
 
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#define MYSQL_FETCH_CACHE_SIZE          8
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/* After fetching this many rows, we start caching them in fetch_cache */
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#define DRIZZLE_FETCH_CACHE_THRESHOLD   4
 
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#define MYSQL_FETCH_CACHE_THRESHOLD     4
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#define ROW_PREBUILT_ALLOCATED  78540783
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#define ROW_PREBUILT_FREED      26423527
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typedef int64_t (*index_cond_func_t)(void *param);
 
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typedef my_bool (*index_cond_func_t)(void *param);
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/* A struct for (sometimes lazily) prebuilt structures in an Innobase table
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handle used within MySQL; these are used to save CPU time. */
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                                        unique search from a clustered index,
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                                        because HANDLER allows NEXT and PREV
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                                        in such a situation */
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        ulint           template_type;  /* ROW_DRIZZLE_WHOLE_ROW,
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                                        ROW_DRIZZLE_REC_FIELDS,
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                                        ROW_DRIZZLE_DUMMY_TEMPLATE, or
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                                        ROW_DRIZZLE_NO_TEMPLATE */
 
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        ulint           template_type;  /* ROW_MYSQL_WHOLE_ROW,
 
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                                        ROW_MYSQL_REC_FIELDS,
 
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                                        ROW_MYSQL_DUMMY_TEMPLATE, or
 
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                                        ROW_MYSQL_NO_TEMPLATE */
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        ulint           n_template;     /* number of elements in the
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                                        template */
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        ulint           null_bitmap_len;/* number of bytes in the SQL NULL
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        ulint           n_rows_fetched; /* number of rows fetched after
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                                        positioning the current cursor */
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        ulint           fetch_direction;/* ROW_SEL_NEXT or ROW_SEL_PREV */
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        byte*           fetch_cache[DRIZZLE_FETCH_CACHE_SIZE];
 
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        byte*           fetch_cache[MYSQL_FETCH_CACHE_SIZE];
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                                        /* a cache for fetched rows if we
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                                        fetch many rows from the same cursor:
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                                        it saves CPU time to fetch them in a
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#define ROW_PREBUILT_FETCH_MAGIC_N      465765687
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#define ROW_DRIZZLE_WHOLE_ROW   0
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#define ROW_DRIZZLE_REC_FIELDS  1
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#define ROW_DRIZZLE_NO_TEMPLATE 2
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#define ROW_DRIZZLE_DUMMY_TEMPLATE 3    /* dummy template used in
 
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#define ROW_MYSQL_WHOLE_ROW     0
 
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#define ROW_MYSQL_REC_FIELDS    1
 
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#define ROW_MYSQL_NO_TEMPLATE   2
 
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#define ROW_MYSQL_DUMMY_TEMPLATE 3      /* dummy template used in
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                                        row_scan_and_check_index */
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/* Values for hint_need_to_fetch_extra_cols */