2001-02-17 13:19:19 +01:00
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/******************************************************
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General row routines
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(c) 1996 Innobase Oy
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Created 4/20/1996 Heikki Tuuri
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*******************************************************/
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#ifndef row0row_h
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#define row0row_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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Applied innodb-5.1-ss269 snapshot.
Fixed BUGS:
#3300: "UPDATE statement with no index column in where condition locks
all rows"
Implement semi-consistent read to reduce lock conflicts at the cost
of breaking serializability.
ha_innobase::unlock_row(): reset the "did semi consistent read" flag
ha_innobase::was_semi_consistent_read(),
ha_innobase::try_semi_consistent_read(): new methods
row_prebuilt_t, row_create_prebuilt(): add field row_read_type for
keeping track of semi-consistent reads
row_vers_build_for_semi_consistent_read(),
row_sel_build_committed_vers_for_mysql(): new functions
row_search_for_mysql(): implement semi-consistent reads
#9802: "Foreign key checks disallow alter table".
Added test cases.
#12456: "Cursor shows incorrect data - DML does not affect,
probably caching"
This patch implements a high-granularity read view to be used with
cursors. In this high-granularity consistent read view modifications
done by the creating transaction after the cursor is created or
future transactions are not visible. But those modifications that
transaction did before the cursor was created are visible.
#12701: "Support >4GB buffer pool and log files on 64-bit Windows"
Do not call os_file_create_tmpfile() at runtime. Instead, create all
tempfiles at startup and guard access to them with mutexes.
#13778: "If FOREIGN_KEY_CHECKS=0, one can create inconsistent FOREIGN KEYs".
When FOREIGN_KEY_CHECKS=0 we still need to check that datatypes between
foreign key references are compatible.
#14189: "VARBINARY and BINARY variables: trailing space ignored with InnoDB"
innobase_init(): Assert that
DATA_MYSQL_BINARY_CHARSET_COLL == my_charset_bin.number.
dtype_get_pad_char(): Do not pad VARBINARY or BINARY columns.
row_ins_cascade_calc_update_vec(): Refuse ON UPDATE CASCADE when trying
to change the length of a VARBINARY column that refers to or is referenced
by a BINARY column. BINARY columns are no longer padded on comparison,
and thus they cannot be padded on storage either.
#14747: "Race condition can cause btr_search_drop_page_hash_index() to crash"
Note that buf_block_t::index should be protected by btr_search_latch
or an s-latch or x-latch on the index page.
btr_search_drop_page_hash_index(): Read block->index while holding
btr_search_latch and use the cached value in the loop. Remove some
redundant assertions.
#15108: "mysqld crashes when innodb_log_file_size is set > 4G"
#15308: "Problem of Order with Enum Column in Primary Key"
#15550: "mysqld crashes in printing a FOREIGN KEY error in InnoDB"
row_ins_foreign_report_add_err(): When printing the parent record,
use the index in the parent table rather than the index in the child table.
#15653: "Slow inserts to InnoDB if many thousands of .ibd files"
Keep track on unflushed modifications to file spaces. When there are tens
of thousands of file spaces, flushing all files in fil_flush_file_spaces()
would be very slow.
fil_flush_file_spaces(): Only flush unflushed file spaces.
fil_space_t, fil_system_t: Add a list of unflushed spaces.
#15991: "innodb-file-per-table + symlink database + rename = cr"
os_file_handle_error(): Map the error codes EXDEV, ENOTDIR, and EISDIR
to the new code OS_FILE_PATH_ERROR. Treat this code as OS_FILE_PATH_ERROR.
This fixes the crash on RENAME TABLE when the .ibd file is a symbolic link
to a different file system.
#16157: "InnoDB crashes when main location settings are empty"
This patch is from Heikki.
#16298: "InnoDB segfaults in INSERTs in upgrade of 4.0 -> 5.0 tables
with VARCHAR BINARY"
dict_load_columns(): Set the charset-collation code
DATA_MYSQL_BINARY_CHARSET_COLL for those binary string columns
that lack a charset-collation code, i.e., the tables were created
with an older version of MySQL/InnoDB than 4.1.2.
#16229: "MySQL/InnoDB uses full explicit table locks in trigger processing"
Take a InnoDB table lock only if user has explicitly requested a table
lock. Added some additional comments to store_lock() and external_lock().
#16387: "InnoDB crash when dropping a foreign key <table>_ibfk_0"
Do not mistake TABLENAME_ibfk_0 for auto-generated id.
dict_table_get_highest_foreign_id(): Ignore foreign constraint
identifiers starting with the pattern TABLENAME_ibfk_0.
#16582: "InnoDB: Error in an adaptive hash index pointer to page"
Account for a race condition when dropping the adaptive hash index
for a B-tree page.
btr_search_drop_page_hash_index(): Retry the operation if a hash index
with different parameters was built meanwhile. Add diagnostics for the
case that hash node pointers to the page remain.
btr_search_info_update_hash(), btr_search_info_update_slow():
Document the parameter "info" as in/out.
#16814: "SHOW INNODB STATUS format error in LATEST FOREIGN KEY ERROR
section"
Add a missing newline to the LAST FOREIGN KEY ERROR section in SHOW
INNODB STATUS output.
dict_foreign_error_report(): Always print a newline after invoking
dict_print_info_on_foreign_key_in_create_format().
#16827: "Better InnoDB error message if ibdata files omitted from my.cnf"
#17126: "CHECK TABLE on InnoDB causes a short hang during check of adaptive
hash"
CHECK TABLE blocking other queries, by releasing the btr_search_latch
periodically during the adaptive hash table validation.
#17405: "Valgrind: conditional jump or move depends on unititialised values"
buf_block_init(): Reset magic_n, buf_fix_count and io_fix to avoid
testing uninitialized variables.
2006-03-10 17:22:21 +01:00
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#include "mtr0mtr.h"
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2001-02-17 13:19:19 +01:00
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#include "rem0types.h"
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#include "read0types.h"
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#include "btr0types.h"
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/*************************************************************************
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Reads the trx id field from a clustered index record. */
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UNIV_INLINE
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dulint
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row_get_rec_trx_id(
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/*===============*/
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/* out: value of the field */
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rec_t* rec, /* in: record */
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2004-12-02 18:45:07 +01:00
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dict_index_t* index, /* in: clustered index */
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const ulint* offsets);/* in: rec_get_offsets(rec, index) */
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2001-02-17 13:19:19 +01:00
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/*************************************************************************
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Reads the roll pointer field from a clustered index record. */
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UNIV_INLINE
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dulint
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row_get_rec_roll_ptr(
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/*=================*/
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/* out: value of the field */
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rec_t* rec, /* in: record */
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2004-12-02 18:45:07 +01:00
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dict_index_t* index, /* in: clustered index */
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const ulint* offsets);/* in: rec_get_offsets(rec, index) */
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2001-02-17 13:19:19 +01:00
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/*************************************************************************
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Writes the trx id field to a clustered index record. */
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UNIV_INLINE
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void
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row_set_rec_trx_id(
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/*===============*/
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rec_t* rec, /* in: record */
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dict_index_t* index, /* in: clustered index */
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2004-12-02 18:45:07 +01:00
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const ulint* offsets,/* in: rec_get_offsets(rec, index) */
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dulint trx_id);/* in: value of the field */
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2001-02-17 13:19:19 +01:00
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/*************************************************************************
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Sets the roll pointer field in a clustered index record. */
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UNIV_INLINE
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void
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row_set_rec_roll_ptr(
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/*=================*/
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rec_t* rec, /* in: record */
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dict_index_t* index, /* in: clustered index */
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2004-12-02 18:45:07 +01:00
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const ulint* offsets,/* in: rec_get_offsets(rec, index) */
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2001-02-17 13:19:19 +01:00
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dulint roll_ptr);/* in: value of the field */
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/*********************************************************************
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When an insert to a table is performed, this function builds the entry which
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has to be inserted to an index on the table. */
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dtuple_t*
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row_build_index_entry(
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/*==================*/
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/* out: index entry which should be inserted */
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Applied innodb-5.1-ss269 snapshot.
Fixed BUGS:
#3300: "UPDATE statement with no index column in where condition locks
all rows"
Implement semi-consistent read to reduce lock conflicts at the cost
of breaking serializability.
ha_innobase::unlock_row(): reset the "did semi consistent read" flag
ha_innobase::was_semi_consistent_read(),
ha_innobase::try_semi_consistent_read(): new methods
row_prebuilt_t, row_create_prebuilt(): add field row_read_type for
keeping track of semi-consistent reads
row_vers_build_for_semi_consistent_read(),
row_sel_build_committed_vers_for_mysql(): new functions
row_search_for_mysql(): implement semi-consistent reads
#9802: "Foreign key checks disallow alter table".
Added test cases.
#12456: "Cursor shows incorrect data - DML does not affect,
probably caching"
This patch implements a high-granularity read view to be used with
cursors. In this high-granularity consistent read view modifications
done by the creating transaction after the cursor is created or
future transactions are not visible. But those modifications that
transaction did before the cursor was created are visible.
#12701: "Support >4GB buffer pool and log files on 64-bit Windows"
Do not call os_file_create_tmpfile() at runtime. Instead, create all
tempfiles at startup and guard access to them with mutexes.
#13778: "If FOREIGN_KEY_CHECKS=0, one can create inconsistent FOREIGN KEYs".
When FOREIGN_KEY_CHECKS=0 we still need to check that datatypes between
foreign key references are compatible.
#14189: "VARBINARY and BINARY variables: trailing space ignored with InnoDB"
innobase_init(): Assert that
DATA_MYSQL_BINARY_CHARSET_COLL == my_charset_bin.number.
dtype_get_pad_char(): Do not pad VARBINARY or BINARY columns.
row_ins_cascade_calc_update_vec(): Refuse ON UPDATE CASCADE when trying
to change the length of a VARBINARY column that refers to or is referenced
by a BINARY column. BINARY columns are no longer padded on comparison,
and thus they cannot be padded on storage either.
#14747: "Race condition can cause btr_search_drop_page_hash_index() to crash"
Note that buf_block_t::index should be protected by btr_search_latch
or an s-latch or x-latch on the index page.
btr_search_drop_page_hash_index(): Read block->index while holding
btr_search_latch and use the cached value in the loop. Remove some
redundant assertions.
#15108: "mysqld crashes when innodb_log_file_size is set > 4G"
#15308: "Problem of Order with Enum Column in Primary Key"
#15550: "mysqld crashes in printing a FOREIGN KEY error in InnoDB"
row_ins_foreign_report_add_err(): When printing the parent record,
use the index in the parent table rather than the index in the child table.
#15653: "Slow inserts to InnoDB if many thousands of .ibd files"
Keep track on unflushed modifications to file spaces. When there are tens
of thousands of file spaces, flushing all files in fil_flush_file_spaces()
would be very slow.
fil_flush_file_spaces(): Only flush unflushed file spaces.
fil_space_t, fil_system_t: Add a list of unflushed spaces.
#15991: "innodb-file-per-table + symlink database + rename = cr"
os_file_handle_error(): Map the error codes EXDEV, ENOTDIR, and EISDIR
to the new code OS_FILE_PATH_ERROR. Treat this code as OS_FILE_PATH_ERROR.
This fixes the crash on RENAME TABLE when the .ibd file is a symbolic link
to a different file system.
#16157: "InnoDB crashes when main location settings are empty"
This patch is from Heikki.
#16298: "InnoDB segfaults in INSERTs in upgrade of 4.0 -> 5.0 tables
with VARCHAR BINARY"
dict_load_columns(): Set the charset-collation code
DATA_MYSQL_BINARY_CHARSET_COLL for those binary string columns
that lack a charset-collation code, i.e., the tables were created
with an older version of MySQL/InnoDB than 4.1.2.
#16229: "MySQL/InnoDB uses full explicit table locks in trigger processing"
Take a InnoDB table lock only if user has explicitly requested a table
lock. Added some additional comments to store_lock() and external_lock().
#16387: "InnoDB crash when dropping a foreign key <table>_ibfk_0"
Do not mistake TABLENAME_ibfk_0 for auto-generated id.
dict_table_get_highest_foreign_id(): Ignore foreign constraint
identifiers starting with the pattern TABLENAME_ibfk_0.
#16582: "InnoDB: Error in an adaptive hash index pointer to page"
Account for a race condition when dropping the adaptive hash index
for a B-tree page.
btr_search_drop_page_hash_index(): Retry the operation if a hash index
with different parameters was built meanwhile. Add diagnostics for the
case that hash node pointers to the page remain.
btr_search_info_update_hash(), btr_search_info_update_slow():
Document the parameter "info" as in/out.
#16814: "SHOW INNODB STATUS format error in LATEST FOREIGN KEY ERROR
section"
Add a missing newline to the LAST FOREIGN KEY ERROR section in SHOW
INNODB STATUS output.
dict_foreign_error_report(): Always print a newline after invoking
dict_print_info_on_foreign_key_in_create_format().
#16827: "Better InnoDB error message if ibdata files omitted from my.cnf"
#17126: "CHECK TABLE on InnoDB causes a short hang during check of adaptive
hash"
CHECK TABLE blocking other queries, by releasing the btr_search_latch
periodically during the adaptive hash table validation.
#17405: "Valgrind: conditional jump or move depends on unititialised values"
buf_block_init(): Reset magic_n, buf_fix_count and io_fix to avoid
testing uninitialized variables.
2006-03-10 17:22:21 +01:00
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dtuple_t* row, /* in: row which should be inserted to the
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2001-02-17 13:19:19 +01:00
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table */
|
Applied innodb-5.1-ss269 snapshot.
Fixed BUGS:
#3300: "UPDATE statement with no index column in where condition locks
all rows"
Implement semi-consistent read to reduce lock conflicts at the cost
of breaking serializability.
ha_innobase::unlock_row(): reset the "did semi consistent read" flag
ha_innobase::was_semi_consistent_read(),
ha_innobase::try_semi_consistent_read(): new methods
row_prebuilt_t, row_create_prebuilt(): add field row_read_type for
keeping track of semi-consistent reads
row_vers_build_for_semi_consistent_read(),
row_sel_build_committed_vers_for_mysql(): new functions
row_search_for_mysql(): implement semi-consistent reads
#9802: "Foreign key checks disallow alter table".
Added test cases.
#12456: "Cursor shows incorrect data - DML does not affect,
probably caching"
This patch implements a high-granularity read view to be used with
cursors. In this high-granularity consistent read view modifications
done by the creating transaction after the cursor is created or
future transactions are not visible. But those modifications that
transaction did before the cursor was created are visible.
#12701: "Support >4GB buffer pool and log files on 64-bit Windows"
Do not call os_file_create_tmpfile() at runtime. Instead, create all
tempfiles at startup and guard access to them with mutexes.
#13778: "If FOREIGN_KEY_CHECKS=0, one can create inconsistent FOREIGN KEYs".
When FOREIGN_KEY_CHECKS=0 we still need to check that datatypes between
foreign key references are compatible.
#14189: "VARBINARY and BINARY variables: trailing space ignored with InnoDB"
innobase_init(): Assert that
DATA_MYSQL_BINARY_CHARSET_COLL == my_charset_bin.number.
dtype_get_pad_char(): Do not pad VARBINARY or BINARY columns.
row_ins_cascade_calc_update_vec(): Refuse ON UPDATE CASCADE when trying
to change the length of a VARBINARY column that refers to or is referenced
by a BINARY column. BINARY columns are no longer padded on comparison,
and thus they cannot be padded on storage either.
#14747: "Race condition can cause btr_search_drop_page_hash_index() to crash"
Note that buf_block_t::index should be protected by btr_search_latch
or an s-latch or x-latch on the index page.
btr_search_drop_page_hash_index(): Read block->index while holding
btr_search_latch and use the cached value in the loop. Remove some
redundant assertions.
#15108: "mysqld crashes when innodb_log_file_size is set > 4G"
#15308: "Problem of Order with Enum Column in Primary Key"
#15550: "mysqld crashes in printing a FOREIGN KEY error in InnoDB"
row_ins_foreign_report_add_err(): When printing the parent record,
use the index in the parent table rather than the index in the child table.
#15653: "Slow inserts to InnoDB if many thousands of .ibd files"
Keep track on unflushed modifications to file spaces. When there are tens
of thousands of file spaces, flushing all files in fil_flush_file_spaces()
would be very slow.
fil_flush_file_spaces(): Only flush unflushed file spaces.
fil_space_t, fil_system_t: Add a list of unflushed spaces.
#15991: "innodb-file-per-table + symlink database + rename = cr"
os_file_handle_error(): Map the error codes EXDEV, ENOTDIR, and EISDIR
to the new code OS_FILE_PATH_ERROR. Treat this code as OS_FILE_PATH_ERROR.
This fixes the crash on RENAME TABLE when the .ibd file is a symbolic link
to a different file system.
#16157: "InnoDB crashes when main location settings are empty"
This patch is from Heikki.
#16298: "InnoDB segfaults in INSERTs in upgrade of 4.0 -> 5.0 tables
with VARCHAR BINARY"
dict_load_columns(): Set the charset-collation code
DATA_MYSQL_BINARY_CHARSET_COLL for those binary string columns
that lack a charset-collation code, i.e., the tables were created
with an older version of MySQL/InnoDB than 4.1.2.
#16229: "MySQL/InnoDB uses full explicit table locks in trigger processing"
Take a InnoDB table lock only if user has explicitly requested a table
lock. Added some additional comments to store_lock() and external_lock().
#16387: "InnoDB crash when dropping a foreign key <table>_ibfk_0"
Do not mistake TABLENAME_ibfk_0 for auto-generated id.
dict_table_get_highest_foreign_id(): Ignore foreign constraint
identifiers starting with the pattern TABLENAME_ibfk_0.
#16582: "InnoDB: Error in an adaptive hash index pointer to page"
Account for a race condition when dropping the adaptive hash index
for a B-tree page.
btr_search_drop_page_hash_index(): Retry the operation if a hash index
with different parameters was built meanwhile. Add diagnostics for the
case that hash node pointers to the page remain.
btr_search_info_update_hash(), btr_search_info_update_slow():
Document the parameter "info" as in/out.
#16814: "SHOW INNODB STATUS format error in LATEST FOREIGN KEY ERROR
section"
Add a missing newline to the LAST FOREIGN KEY ERROR section in SHOW
INNODB STATUS output.
dict_foreign_error_report(): Always print a newline after invoking
dict_print_info_on_foreign_key_in_create_format().
#16827: "Better InnoDB error message if ibdata files omitted from my.cnf"
#17126: "CHECK TABLE on InnoDB causes a short hang during check of adaptive
hash"
CHECK TABLE blocking other queries, by releasing the btr_search_latch
periodically during the adaptive hash table validation.
#17405: "Valgrind: conditional jump or move depends on unititialised values"
buf_block_init(): Reset magic_n, buf_fix_count and io_fix to avoid
testing uninitialized variables.
2006-03-10 17:22:21 +01:00
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dict_index_t* index, /* in: index on the table */
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2001-02-17 13:19:19 +01:00
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mem_heap_t* heap); /* in: memory heap from which the memory for
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the index entry is allocated */
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/***********************************************************************
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An inverse function to dict_row_build_index_entry. Builds a row from a
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record in a clustered index. */
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dtuple_t*
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row_build(
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/*======*/
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/* out, own: row built; see the NOTE below! */
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2006-09-05 03:52:15 +02:00
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ulint type, /* in: ROW_COPY_POINTERS or ROW_COPY_DATA;
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the latter copies also the data fields to
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heap while the first only places pointers to
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2001-02-17 13:19:19 +01:00
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data fields on the index page, and thus is
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more efficient */
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dict_index_t* index, /* in: clustered index */
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rec_t* rec, /* in: record in the clustered index;
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NOTE: in the case ROW_COPY_POINTERS
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the data fields in the row will point
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directly into this record, therefore,
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the buffer page of this record must be
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at least s-latched and the latch held
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as long as the row dtuple is used! */
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2004-12-02 18:45:07 +01:00
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const ulint* offsets,/* in: rec_get_offsets(rec, index)
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or NULL, in which case this function
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will invoke rec_get_offsets() */
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2001-02-17 13:19:19 +01:00
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mem_heap_t* heap); /* in: memory heap from which the memory
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needed is allocated */
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/***********************************************************************
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Converts an index record to a typed data tuple. */
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dtuple_t*
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row_rec_to_index_entry(
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/*===================*/
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/* out, own: index entry built; see the
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NOTE below! */
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ulint type, /* in: ROW_COPY_DATA, or ROW_COPY_POINTERS:
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the former copies also the data fields to
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heap as the latter only places pointers to
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data fields on the index page */
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dict_index_t* index, /* in: index */
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rec_t* rec, /* in: record in the index;
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NOTE: in the case ROW_COPY_POINTERS
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|
|
the data fields in the row will point
|
|
|
|
|
directly into this record, therefore,
|
|
|
|
|
the buffer page of this record must be
|
|
|
|
|
at least s-latched and the latch held
|
|
|
|
|
as long as the dtuple is used! */
|
|
|
|
|
mem_heap_t* heap); /* in: memory heap from which the memory
|
|
|
|
|
needed is allocated */
|
|
|
|
|
/***********************************************************************
|
|
|
|
|
Builds from a secondary index record a row reference with which we can
|
|
|
|
|
search the clustered index record. */
|
|
|
|
|
|
|
|
|
|
dtuple_t*
|
|
|
|
|
row_build_row_ref(
|
|
|
|
|
/*==============*/
|
|
|
|
|
/* out, own: row reference built; see the
|
|
|
|
|
NOTE below! */
|
|
|
|
|
ulint type, /* in: ROW_COPY_DATA, or ROW_COPY_POINTERS:
|
|
|
|
|
the former copies also the data fields to
|
|
|
|
|
heap, whereas the latter only places pointers
|
|
|
|
|
to data fields on the index page */
|
|
|
|
|
dict_index_t* index, /* in: index */
|
|
|
|
|
rec_t* rec, /* in: record in the index;
|
|
|
|
|
NOTE: in the case ROW_COPY_POINTERS
|
|
|
|
|
the data fields in the row will point
|
|
|
|
|
directly into this record, therefore,
|
|
|
|
|
the buffer page of this record must be
|
|
|
|
|
at least s-latched and the latch held
|
|
|
|
|
as long as the row reference is used! */
|
|
|
|
|
mem_heap_t* heap); /* in: memory heap from which the memory
|
|
|
|
|
needed is allocated */
|
|
|
|
|
/***********************************************************************
|
|
|
|
|
Builds from a secondary index record a row reference with which we can
|
|
|
|
|
search the clustered index record. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
row_build_row_ref_in_tuple(
|
|
|
|
|
/*=======================*/
|
|
|
|
|
dtuple_t* ref, /* in/out: row reference built; see the
|
|
|
|
|
NOTE below! */
|
|
|
|
|
dict_index_t* index, /* in: index */
|
2004-10-01 10:51:59 +02:00
|
|
|
rec_t* rec, /* in: record in the index;
|
2001-02-17 13:19:19 +01:00
|
|
|
NOTE: the data fields in ref will point
|
|
|
|
|
directly into this record, therefore,
|
|
|
|
|
the buffer page of this record must be
|
|
|
|
|
at least s-latched and the latch held
|
|
|
|
|
as long as the row reference is used! */
|
2004-10-01 10:51:59 +02:00
|
|
|
trx_t* trx); /* in: transaction */
|
2001-02-17 13:19:19 +01:00
|
|
|
/***********************************************************************
|
|
|
|
|
From a row build a row reference with which we can search the clustered
|
|
|
|
|
index record. */
|
|
|
|
|
|
|
|
|
|
void
|
|
|
|
|
row_build_row_ref_from_row(
|
|
|
|
|
/*=======================*/
|
|
|
|
|
dtuple_t* ref, /* in/out: row reference built; see the
|
|
|
|
|
NOTE below! ref must have the right number
|
|
|
|
|
of fields! */
|
|
|
|
|
dict_table_t* table, /* in: table */
|
|
|
|
|
dtuple_t* row); /* in: row
|
|
|
|
|
NOTE: the data fields in ref will point
|
|
|
|
|
directly into data of this row */
|
|
|
|
|
/***********************************************************************
|
|
|
|
|
Builds from a secondary index record a row reference with which we can
|
|
|
|
|
search the clustered index record. */
|
|
|
|
|
UNIV_INLINE
|
|
|
|
|
void
|
|
|
|
|
row_build_row_ref_fast(
|
|
|
|
|
/*===================*/
|
2004-12-02 18:45:07 +01:00
|
|
|
dtuple_t* ref, /* in: typed data tuple where the
|
|
|
|
|
reference is built */
|
|
|
|
|
const ulint* map, /* in: array of field numbers in rec
|
|
|
|
|
telling how ref should be built from
|
|
|
|
|
the fields of rec */
|
|
|
|
|
rec_t* rec, /* in: record in the index; must be
|
|
|
|
|
preserved while ref is used, as we do
|
|
|
|
|
not copy field values to heap */
|
|
|
|
|
const ulint* offsets);/* in: array returned by rec_get_offsets() */
|
2001-02-17 13:19:19 +01:00
|
|
|
/*******************************************************************
|
|
|
|
|
Searches the clustered index record for a row, if we have the row
|
|
|
|
|
reference. */
|
|
|
|
|
|
|
|
|
|
ibool
|
|
|
|
|
row_search_on_row_ref(
|
|
|
|
|
/*==================*/
|
|
|
|
|
/* out: TRUE if found */
|
|
|
|
|
btr_pcur_t* pcur, /* in/out: persistent cursor, which must
|
|
|
|
|
be closed by the caller */
|
|
|
|
|
ulint mode, /* in: BTR_MODIFY_LEAF, ... */
|
|
|
|
|
dict_table_t* table, /* in: table */
|
|
|
|
|
dtuple_t* ref, /* in: row reference */
|
|
|
|
|
mtr_t* mtr); /* in: mtr */
|
|
|
|
|
/*************************************************************************
|
|
|
|
|
Fetches the clustered index record for a secondary index record. The latches
|
|
|
|
|
on the secondary index record are preserved. */
|
|
|
|
|
|
|
|
|
|
rec_t*
|
|
|
|
|
row_get_clust_rec(
|
|
|
|
|
/*==============*/
|
|
|
|
|
/* out: record or NULL, if no record found */
|
|
|
|
|
ulint mode, /* in: BTR_MODIFY_LEAF, ... */
|
|
|
|
|
rec_t* rec, /* in: record in a secondary index */
|
|
|
|
|
dict_index_t* index, /* in: secondary index */
|
|
|
|
|
dict_index_t** clust_index,/* out: clustered index */
|
|
|
|
|
mtr_t* mtr); /* in: mtr */
|
|
|
|
|
/*******************************************************************
|
|
|
|
|
Searches an index record. */
|
|
|
|
|
|
|
|
|
|
ibool
|
|
|
|
|
row_search_index_entry(
|
|
|
|
|
/*===================*/
|
|
|
|
|
/* out: TRUE if found */
|
|
|
|
|
dict_index_t* index, /* in: index */
|
|
|
|
|
dtuple_t* entry, /* in: index entry */
|
|
|
|
|
ulint mode, /* in: BTR_MODIFY_LEAF, ... */
|
|
|
|
|
btr_pcur_t* pcur, /* in/out: persistent cursor, which must
|
|
|
|
|
be closed by the caller */
|
|
|
|
|
mtr_t* mtr); /* in: mtr */
|
|
|
|
|
|
Applied innodb-5.1-ss269 snapshot.
Fixed BUGS:
#3300: "UPDATE statement with no index column in where condition locks
all rows"
Implement semi-consistent read to reduce lock conflicts at the cost
of breaking serializability.
ha_innobase::unlock_row(): reset the "did semi consistent read" flag
ha_innobase::was_semi_consistent_read(),
ha_innobase::try_semi_consistent_read(): new methods
row_prebuilt_t, row_create_prebuilt(): add field row_read_type for
keeping track of semi-consistent reads
row_vers_build_for_semi_consistent_read(),
row_sel_build_committed_vers_for_mysql(): new functions
row_search_for_mysql(): implement semi-consistent reads
#9802: "Foreign key checks disallow alter table".
Added test cases.
#12456: "Cursor shows incorrect data - DML does not affect,
probably caching"
This patch implements a high-granularity read view to be used with
cursors. In this high-granularity consistent read view modifications
done by the creating transaction after the cursor is created or
future transactions are not visible. But those modifications that
transaction did before the cursor was created are visible.
#12701: "Support >4GB buffer pool and log files on 64-bit Windows"
Do not call os_file_create_tmpfile() at runtime. Instead, create all
tempfiles at startup and guard access to them with mutexes.
#13778: "If FOREIGN_KEY_CHECKS=0, one can create inconsistent FOREIGN KEYs".
When FOREIGN_KEY_CHECKS=0 we still need to check that datatypes between
foreign key references are compatible.
#14189: "VARBINARY and BINARY variables: trailing space ignored with InnoDB"
innobase_init(): Assert that
DATA_MYSQL_BINARY_CHARSET_COLL == my_charset_bin.number.
dtype_get_pad_char(): Do not pad VARBINARY or BINARY columns.
row_ins_cascade_calc_update_vec(): Refuse ON UPDATE CASCADE when trying
to change the length of a VARBINARY column that refers to or is referenced
by a BINARY column. BINARY columns are no longer padded on comparison,
and thus they cannot be padded on storage either.
#14747: "Race condition can cause btr_search_drop_page_hash_index() to crash"
Note that buf_block_t::index should be protected by btr_search_latch
or an s-latch or x-latch on the index page.
btr_search_drop_page_hash_index(): Read block->index while holding
btr_search_latch and use the cached value in the loop. Remove some
redundant assertions.
#15108: "mysqld crashes when innodb_log_file_size is set > 4G"
#15308: "Problem of Order with Enum Column in Primary Key"
#15550: "mysqld crashes in printing a FOREIGN KEY error in InnoDB"
row_ins_foreign_report_add_err(): When printing the parent record,
use the index in the parent table rather than the index in the child table.
#15653: "Slow inserts to InnoDB if many thousands of .ibd files"
Keep track on unflushed modifications to file spaces. When there are tens
of thousands of file spaces, flushing all files in fil_flush_file_spaces()
would be very slow.
fil_flush_file_spaces(): Only flush unflushed file spaces.
fil_space_t, fil_system_t: Add a list of unflushed spaces.
#15991: "innodb-file-per-table + symlink database + rename = cr"
os_file_handle_error(): Map the error codes EXDEV, ENOTDIR, and EISDIR
to the new code OS_FILE_PATH_ERROR. Treat this code as OS_FILE_PATH_ERROR.
This fixes the crash on RENAME TABLE when the .ibd file is a symbolic link
to a different file system.
#16157: "InnoDB crashes when main location settings are empty"
This patch is from Heikki.
#16298: "InnoDB segfaults in INSERTs in upgrade of 4.0 -> 5.0 tables
with VARCHAR BINARY"
dict_load_columns(): Set the charset-collation code
DATA_MYSQL_BINARY_CHARSET_COLL for those binary string columns
that lack a charset-collation code, i.e., the tables were created
with an older version of MySQL/InnoDB than 4.1.2.
#16229: "MySQL/InnoDB uses full explicit table locks in trigger processing"
Take a InnoDB table lock only if user has explicitly requested a table
lock. Added some additional comments to store_lock() and external_lock().
#16387: "InnoDB crash when dropping a foreign key <table>_ibfk_0"
Do not mistake TABLENAME_ibfk_0 for auto-generated id.
dict_table_get_highest_foreign_id(): Ignore foreign constraint
identifiers starting with the pattern TABLENAME_ibfk_0.
#16582: "InnoDB: Error in an adaptive hash index pointer to page"
Account for a race condition when dropping the adaptive hash index
for a B-tree page.
btr_search_drop_page_hash_index(): Retry the operation if a hash index
with different parameters was built meanwhile. Add diagnostics for the
case that hash node pointers to the page remain.
btr_search_info_update_hash(), btr_search_info_update_slow():
Document the parameter "info" as in/out.
#16814: "SHOW INNODB STATUS format error in LATEST FOREIGN KEY ERROR
section"
Add a missing newline to the LAST FOREIGN KEY ERROR section in SHOW
INNODB STATUS output.
dict_foreign_error_report(): Always print a newline after invoking
dict_print_info_on_foreign_key_in_create_format().
#16827: "Better InnoDB error message if ibdata files omitted from my.cnf"
#17126: "CHECK TABLE on InnoDB causes a short hang during check of adaptive
hash"
CHECK TABLE blocking other queries, by releasing the btr_search_latch
periodically during the adaptive hash table validation.
#17405: "Valgrind: conditional jump or move depends on unititialised values"
buf_block_init(): Reset magic_n, buf_fix_count and io_fix to avoid
testing uninitialized variables.
2006-03-10 17:22:21 +01:00
|
|
|
|
2001-02-17 13:19:19 +01:00
|
|
|
#define ROW_COPY_DATA 1
|
|
|
|
|
#define ROW_COPY_POINTERS 2
|
|
|
|
|
|
|
|
|
|
/* The allowed latching order of index records is the following:
|
|
|
|
|
(1) a secondary index record ->
|
|
|
|
|
(2) the clustered index record ->
|
|
|
|
|
(3) rollback segment data for the clustered index record.
|
|
|
|
|
|
|
|
|
|
No new latches may be obtained while the kernel mutex is reserved.
|
|
|
|
|
However, the kernel mutex can be reserved while latches are owned. */
|
|
|
|
|
|
|
|
|
|
#ifndef UNIV_NONINL
|
|
|
|
|
#include "row0row.ic"
|
|
|
|
|
#endif
|
|
|
|
|
|
Applied innodb-5.1-ss269 snapshot.
Fixed BUGS:
#3300: "UPDATE statement with no index column in where condition locks
all rows"
Implement semi-consistent read to reduce lock conflicts at the cost
of breaking serializability.
ha_innobase::unlock_row(): reset the "did semi consistent read" flag
ha_innobase::was_semi_consistent_read(),
ha_innobase::try_semi_consistent_read(): new methods
row_prebuilt_t, row_create_prebuilt(): add field row_read_type for
keeping track of semi-consistent reads
row_vers_build_for_semi_consistent_read(),
row_sel_build_committed_vers_for_mysql(): new functions
row_search_for_mysql(): implement semi-consistent reads
#9802: "Foreign key checks disallow alter table".
Added test cases.
#12456: "Cursor shows incorrect data - DML does not affect,
probably caching"
This patch implements a high-granularity read view to be used with
cursors. In this high-granularity consistent read view modifications
done by the creating transaction after the cursor is created or
future transactions are not visible. But those modifications that
transaction did before the cursor was created are visible.
#12701: "Support >4GB buffer pool and log files on 64-bit Windows"
Do not call os_file_create_tmpfile() at runtime. Instead, create all
tempfiles at startup and guard access to them with mutexes.
#13778: "If FOREIGN_KEY_CHECKS=0, one can create inconsistent FOREIGN KEYs".
When FOREIGN_KEY_CHECKS=0 we still need to check that datatypes between
foreign key references are compatible.
#14189: "VARBINARY and BINARY variables: trailing space ignored with InnoDB"
innobase_init(): Assert that
DATA_MYSQL_BINARY_CHARSET_COLL == my_charset_bin.number.
dtype_get_pad_char(): Do not pad VARBINARY or BINARY columns.
row_ins_cascade_calc_update_vec(): Refuse ON UPDATE CASCADE when trying
to change the length of a VARBINARY column that refers to or is referenced
by a BINARY column. BINARY columns are no longer padded on comparison,
and thus they cannot be padded on storage either.
#14747: "Race condition can cause btr_search_drop_page_hash_index() to crash"
Note that buf_block_t::index should be protected by btr_search_latch
or an s-latch or x-latch on the index page.
btr_search_drop_page_hash_index(): Read block->index while holding
btr_search_latch and use the cached value in the loop. Remove some
redundant assertions.
#15108: "mysqld crashes when innodb_log_file_size is set > 4G"
#15308: "Problem of Order with Enum Column in Primary Key"
#15550: "mysqld crashes in printing a FOREIGN KEY error in InnoDB"
row_ins_foreign_report_add_err(): When printing the parent record,
use the index in the parent table rather than the index in the child table.
#15653: "Slow inserts to InnoDB if many thousands of .ibd files"
Keep track on unflushed modifications to file spaces. When there are tens
of thousands of file spaces, flushing all files in fil_flush_file_spaces()
would be very slow.
fil_flush_file_spaces(): Only flush unflushed file spaces.
fil_space_t, fil_system_t: Add a list of unflushed spaces.
#15991: "innodb-file-per-table + symlink database + rename = cr"
os_file_handle_error(): Map the error codes EXDEV, ENOTDIR, and EISDIR
to the new code OS_FILE_PATH_ERROR. Treat this code as OS_FILE_PATH_ERROR.
This fixes the crash on RENAME TABLE when the .ibd file is a symbolic link
to a different file system.
#16157: "InnoDB crashes when main location settings are empty"
This patch is from Heikki.
#16298: "InnoDB segfaults in INSERTs in upgrade of 4.0 -> 5.0 tables
with VARCHAR BINARY"
dict_load_columns(): Set the charset-collation code
DATA_MYSQL_BINARY_CHARSET_COLL for those binary string columns
that lack a charset-collation code, i.e., the tables were created
with an older version of MySQL/InnoDB than 4.1.2.
#16229: "MySQL/InnoDB uses full explicit table locks in trigger processing"
Take a InnoDB table lock only if user has explicitly requested a table
lock. Added some additional comments to store_lock() and external_lock().
#16387: "InnoDB crash when dropping a foreign key <table>_ibfk_0"
Do not mistake TABLENAME_ibfk_0 for auto-generated id.
dict_table_get_highest_foreign_id(): Ignore foreign constraint
identifiers starting with the pattern TABLENAME_ibfk_0.
#16582: "InnoDB: Error in an adaptive hash index pointer to page"
Account for a race condition when dropping the adaptive hash index
for a B-tree page.
btr_search_drop_page_hash_index(): Retry the operation if a hash index
with different parameters was built meanwhile. Add diagnostics for the
case that hash node pointers to the page remain.
btr_search_info_update_hash(), btr_search_info_update_slow():
Document the parameter "info" as in/out.
#16814: "SHOW INNODB STATUS format error in LATEST FOREIGN KEY ERROR
section"
Add a missing newline to the LAST FOREIGN KEY ERROR section in SHOW
INNODB STATUS output.
dict_foreign_error_report(): Always print a newline after invoking
dict_print_info_on_foreign_key_in_create_format().
#16827: "Better InnoDB error message if ibdata files omitted from my.cnf"
#17126: "CHECK TABLE on InnoDB causes a short hang during check of adaptive
hash"
CHECK TABLE blocking other queries, by releasing the btr_search_latch
periodically during the adaptive hash table validation.
#17405: "Valgrind: conditional jump or move depends on unititialised values"
buf_block_init(): Reset magic_n, buf_fix_count and io_fix to avoid
testing uninitialized variables.
2006-03-10 17:22:21 +01:00
|
|
|
#endif
|