dict0crea.h

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/** @file include/dict0crea.h
 Database object creation
 
 Created 1/8/1996 Heikki Tuuri
 *******************************************************/
 
#ifndef dict0crea_h
#define dict0crea_h
 
#include "dict0dict.h"
#include "dict0types.h"
#include "fsp0space.h"
#include "mtr0mtr.h"
#include "que0types.h"
#include "row0types.h"
#include "sql/handler.h"
#include "univ.i"
 
/** Build a table definition without updating SYSTEM TABLES
@param[in,out]  table           dict table object
@param[in]      create_info     HA_CREATE_INFO object
@param[in,out]  trx             transaction instance
@return DB_SUCCESS or error code */
dberr_t dict_build_table_def(dict_table_t *table,
                             const HA_CREATE_INFO *create_info, trx_t *trx);
 
/** Builds a tablespace to store various objects.
@param[in,out]  trx             DD transaction
@param[in,out]  tablespace      Tablespace object describing what to build.
@return DB_SUCCESS or error code. */
dberr_t dict_build_tablespace(trx_t *trx, Tablespace *tablespace);
 
/** Builds a tablespace to contain a table, using file-per-table=1.
@param[in,out]  table           Table to build in its own tablespace.
@param[in]      create_info     HA_CREATE_INFO object
@param[in,out]  trx             Transaction
@return DB_SUCCESS or error code */
dberr_t dict_build_tablespace_for_table(dict_table_t *table,
                                        const HA_CREATE_INFO *create_info,
                                        trx_t *trx);
 
/** Assign a new table ID and put it into the table cache and the transaction.
@param[in,out]  table   Table that needs an ID */
void dict_table_assign_new_id(dict_table_t *table);
 
/** Builds an index definition but doesn't update sys_table. */
void dict_build_index_def(const dict_table_t *table, /*!< in: table */
                          dict_index_t *index,       /*!< in/out: index */
                          trx_t *trx); /*!< in/out: InnoDB transaction
                                       handle */
/** Creates an index tree for the index if it is not a member of a cluster.
 @param[in,out] index   InnoDB index object
 @param[in,out] trx     transaction
 @return        DB_SUCCESS or DB_OUT_OF_FILE_SPACE */
dberr_t dict_create_index_tree_in_mem(dict_index_t *index, trx_t *trx);
 
/** Drop an index tree belonging to a temporary table.
@param[in]      index           index in a temporary table
@param[in]      root_page_no    index root page number */
void dict_drop_temporary_table_index(const dict_index_t *index,
                                     page_no_t root_page_no);
 
/** Generate a foreign key constraint name when it was not named by the user.
A generated constraint has a name of the format dbname/tablename_ibfk_NUMBER,
where the numbers start from 1, and are given locally for this table, that is,
the number is not global, as it used to be before MySQL 4.0.18.
@param[in,out]  id_nr   number to use in id generation; incremented if used
@param[in]      name    table name
@param[in,out]  foreign foreign key */
static inline dberr_t dict_create_add_foreign_id(ulint *id_nr, const char *name,
                                                 dict_foreign_t *foreign);
 
/** Check if a foreign constraint is on columns served as base columns
of any stored column. This is to prevent creating SET NULL or CASCADE
constraint on such columns
@param[in]      local_fk_set    set of foreign key objects, to be added to
the dictionary tables
@param[in]      table           table to which the foreign key objects in
local_fk_set belong to
@return true if yes, otherwise, false */
bool dict_foreigns_has_s_base_col(const dict_foreign_set &local_fk_set,
                                  const dict_table_t *table);
 
/* Table create node structure */
struct tab_node_t {
  que_common_t common;   /*!< node type: QUE_NODE_TABLE_CREATE */
  dict_table_t *table;   /*!< table to create, built as a
                         memory data structure with
                         dict_mem_... functions */
  ins_node_t *tab_def;   /*!< child node which does the insert of
                         the table definition; the row to be
                         inserted is built by the parent node  */
  ins_node_t *col_def;   /*!< child node which does the inserts
                         of the column definitions; the row to
                         be inserted is built by the parent
                         node  */
  ins_node_t *v_col_def; /*!< child node which does the inserts
                         of the sys_virtual row definitions;
                         the row to be inserted is built by
                         the parent node  */
  /*----------------------*/
  /* Local storage for this graph node */
  ulint state;       /*!< node execution state */
  ulint col_no;      /*!< next column definition to insert */
  ulint base_col_no; /*!< next base column to insert */
  mem_heap_t *heap;  /*!< memory heap used as auxiliary
                     storage */
};
 
/** Create in-memory tablespace dictionary index & table
@param[in]      space           tablespace id
@param[in]      space_discarded true if space is discarded
@param[in]      in_flags        space flags to use when space_discarded is true
@param[in]      is_create       true when creating SDI index
@return in-memory index structure for tablespace dictionary or NULL */
dict_index_t *dict_sdi_create_idx_in_mem(space_id_t space, bool space_discarded,
                                         uint32_t in_flags, bool is_create);
 
/* Index create node struct */
 
struct ind_node_t {
  que_common_t common;   /*!< node type: QUE_NODE_INDEX_CREATE */
  dict_index_t *index;   /*!< index to create, built as a
                         memory data structure with
                         dict_mem_... functions */
  ins_node_t *ind_def;   /*!< child node which does the insert of
                         the index definition; the row to be
                         inserted is built by the parent node  */
  ins_node_t *field_def; /*!< child node which does the inserts
                         of the field definitions; the row to
                         be inserted is built by the parent
                         node  */
  /*----------------------*/
  /* Local storage for this graph node */
  ulint state;                   /*!< node execution state */
  ulint page_no;                 /* root page number of the index */
  dict_table_t *table;           /*!< table which owns the index */
  dtuple_t *ind_row;             /* index definition row built */
  ulint field_no;                /* next field definition to insert */
  mem_heap_t *heap;              /*!< memory heap used as auxiliary
                                 storage */
  const dict_add_v_col_t *add_v; /*!< new virtual columns that being
                                 added along with an add index call */
};
 
/** Compose a column number for a virtual column, stored in the "POS" field
of Sys_columns. The column number includes both its virtual column sequence
(the "nth" virtual column) and its actual column position in original table
@param[in]      v_pos           virtual column sequence
@param[in]      col_pos         column position in original table definition
@return composed column position number */
static inline ulint dict_create_v_col_pos(ulint v_pos, ulint col_pos);
 
/** Get the column number for a virtual column (the column position in
original table), stored in the "POS" field of Sys_columns
@param[in]      pos             virtual column position
@return column position in original table */
static inline ulint dict_get_v_col_mysql_pos(ulint pos);
 
/** Get a virtual column sequence (the "nth" virtual column) for a
virtual column, stord in the "POS" field of Sys_columns
@param[in]      pos             virtual column position
@return virtual column sequence */
static inline ulint dict_get_v_col_pos(ulint pos);
 
#include "dict0crea.ic"
 
#endif