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f304ce109c
innobase_copy_index_field_def(): Remove parameter heap. The field->name will not be deallocated before the copied index has been added to the data dictionary cache. innobase_copy_index_def(): Add const qualifier to dict_index_t*. Add an assertion !dict_index_is_clust(index). ha_innobase::add_index(): Add the missing user_thd parameter to the convert_error_code_to_mysql() call that was forgotten from r1686. merge_index_field_struct: Add const qualifier to field_name. merge_index_def_struct: Add const qualifier to name. row_merge_build_indexes(): Improve the function comment. row_merge_drop_table(): Remove bogus assertion ut_a(table->to_be_dropped).
136 lines
4.4 KiB
C
136 lines
4.4 KiB
C
/******************************************************
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Index build routines using a merge sort
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(c) 2005 Innobase Oy
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Created 13/06/2005 Jan Lindstrom
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*******************************************************/
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#ifndef row0merge_h
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#define row0merge_h
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#include "univ.i"
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#include "data0data.h"
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#include "dict0types.h"
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#include "trx0types.h"
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#include "que0types.h"
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#include "mtr0mtr.h"
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#include "rem0types.h"
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#include "rem0rec.h"
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#include "read0types.h"
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#include "btr0types.h"
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#include "row0mysql.h"
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/* This structure holds index field definitions */
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struct merge_index_field_struct {
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ulint prefix_len; /* Prefix len */
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const char* field_name; /* Field name */
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};
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typedef struct merge_index_field_struct merge_index_field_t;
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/* This structure holds index definitions */
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struct merge_index_def_struct {
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const char* name; /* Index name */
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ulint ind_type; /* 0, DICT_UNIQUE,
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or DICT_CLUSTERED */
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ulint n_fields; /* Number of fields in index */
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merge_index_field_t* fields; /* Field definitions */
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};
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typedef struct merge_index_def_struct merge_index_def_t;
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/*************************************************************************
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Drop an index from the InnoDB system tables. */
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void
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row_merge_drop_index(
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/*=================*/
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dict_index_t* index, /* in: index to be removed */
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dict_table_t* table, /* in: table */
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trx_t* trx); /* in: transaction handle */
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/*************************************************************************
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Drop those indexes which were created before an error occurred
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when building an index. */
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void
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row_merge_drop_indexes(
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/*===================*/
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trx_t* trx, /* in: transaction */
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dict_table_t* table, /* in: table containing the indexes */
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dict_index_t** index, /* in: indexes to drop */
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ulint num_created); /* in: number of elements in index[] */
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/*************************************************************************
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Create a temporary table using a definition of the old table. You must
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lock data dictionary before calling this function. */
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dict_table_t*
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row_merge_create_temporary_table(
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/*=============================*/
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/* out: table, or NULL on error */
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const char* table_name, /* in: new table name */
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dict_table_t* table, /* in: old table definition */
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trx_t* trx); /* in/out: trx (sets error_state) */
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/*************************************************************************
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Rename the indexes in the dictionary. */
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ulint
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row_merge_rename_index(
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/*===================*/
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/* out: DB_SUCCESS if all OK */
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trx_t* trx, /* in: Transaction */
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dict_table_t* table, /* in: Table for index */
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dict_index_t* index); /* in: Index to rename */
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/*************************************************************************
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Create the index and load in to the dictionary. */
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dict_index_t*
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row_merge_create_index(
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/*===================*/
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/* out: index, or NULL on error */
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trx_t* trx, /* in/out: trx (sets error_state) */
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dict_table_t* table, /* in: the index is on this table */
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const merge_index_def_t* /* in: the index definition */
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index_def);
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/*************************************************************************
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Check if a transaction can use an index. */
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ibool
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row_merge_is_index_usable(
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/*======================*/
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/* out: TRUE if index can be used by
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the transaction else FALSE*/
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const trx_t* trx, /* in: transaction */
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const dict_index_t* index); /* in: index to check */
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/*************************************************************************
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If there are views that refer to the old table name then we "attach" to
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the new instance of the table else we drop it immediately. */
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ulint
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row_merge_drop_table(
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/*=================*/
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/* out: DB_SUCCESS or error code */
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trx_t* trx, /* in: transaction */
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dict_table_t* table); /* in: table instance to drop */
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/*************************************************************************
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Build indexes on a table by reading a clustered index,
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creating a temporary file containing index entries, merge sorting
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these index entries and inserting sorted index entries to indexes. */
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ulint
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row_merge_build_indexes(
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/*====================*/
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/* out: DB_SUCCESS or error code */
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trx_t* trx, /* in: transaction */
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dict_table_t* old_table, /* in: table where rows are
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read from */
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dict_table_t* new_table, /* in: table where indexes are
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created; identical to old_table
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unless creating a PRIMARY KEY */
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dict_index_t** indexes, /* in: indexes to be created */
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ulint n_indexes); /* in: size of indexes[] */
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#endif /* row0merge.h */
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