Based on mysql/mysql-server@bc9c46bf28
but without sleeps.
The test was verified to hit the debug assertion if the change to
fts_add_doc_by_id() in commit 2d98b967e3
was reverted.
InnoDB commit fails when consecutive FTS_DOC_ID value
is greater than 4294967295.
Fix is that InnoDB should remove the delta FTS_DOC_ID
value limitations and fts should encode 8 byte value,
remove FTS_DOC_ID_MAX_STEP variable. Replaced the
fts0vlc.ic file with fts0vlc.h
fts_encode_int(): Should be able to encode 10 bytes value
fts_get_encoded_len(): Should get the length of the value
which has 10 bytes
fts_decode_vlc(): Add debug assertion to verify the maximum
length allowed is 10.
mach_read_uint64_little_endian(): Reads 64 bit stored in
little endian format
Added a unit test case which check for minimum and maximum
value to do the fts encoding
FTS add index fails
Problem:
========
InnoDB double frees the table if auxiliary fts table
creation fails and fails to set the dict operation
for the transaction. It leads to failure while
dropping newly added index.
Solution:
=========
InnoDB should avoid double freeing and set the
dictionary operation of transaction in
fts_create_common_tables()
InnoDB tries to fetch the deleted doc ids for discarded
tablespace. In i_s_fts_deleted_generic_fill(), InnoDB needs
to check whether the table is discarded or not before fetching
deleted doc ids.
InnoDB should skip the dropped aborted FTS_DOC_ID_INDEX while
checking the existing FTS_DOC_ID_INDEX in the table. InnoDB
should able to create new FTS_DOC_ID_INDEX if the fulltext
index is being added for the first time.
- Aborting of fulltext index creation fails to remove the
index from sys indexes table. When we try to reload the
table definition, InnoDB fails with index count mismatch
error. InnoDB should remove the index from sys indexes while
rollbacking the secondary index creation.
InnoDB set the space in dict_table_t as NULL when table
is discarded. So InnoDB shouldn't use the space present
in table to detect whether the given tablespace is
temporary tablespace.
with wrong data type is added
Inplace alter fails to report error when fts_doc_id column with
wrong data type is added.
prepare_inplace_alter_table_dict(): Should check whether the column
is fts_doc_id. It should be of bigint type, should accept non null
data type and it should be in capital letters.
fts_query_t::nested_sub_exp: Keep track of nested
fts_ast_visit_sub_exp() calls.
fts_ast_visit_sub_exp(): Return DB_OUT_OF_MEMORY if the
maximum recursion depth is exceeded.
This is motivated by a change in MySQL 5.6.50:
mysql/mysql-server@e2a46b4834
Bug #29929684 USING MANY NESTED ARGUMENTS WITH BOOLEAN FTS CAN LEAD
TO TERMINATE SERVER
Marking of deletion of row in fts index happens twice in
self-referential foreign key relation. So while performing
referential checks of foreign key, InnoDB can avoid updating
of fts index if the foreign key has self-referential relationship.
Reviewed-by: Marko Mäkelä
Problem:
========
- InnoDB clears the fts resource when last FTS index is being dropped
if the table has user defined FTS_DOC_ID. While creating the new fts
index, InnoDB expects to have FTS resources.
Fix:
===
fts_drop_index(): Removed the fts resource clear.
fts_clear_all(): Clear the fts resource when there are no new fts
index to be added.
commit_cache_norebuild(), row_merge_drop_indexes():
Tries to call fts resource after removing associated fts index
from table object
Several MYSQL_SYSVAR_STR parameters that employ both a validate
function callback fail to copy the string for saving the
validated value. The affected variables include the following:
innodb_ft_aux_table
innodb_ft_server_stopword_table
innodb_ft_user_stopword_table
innodb_buffer_pool_filename
The test case is an enhanced version of
mysql/mysql-server@0b0c30641f
and the code changes are inspired by their fixes.
We are also importing and adjusting the test innodb_fts.stopword
to get coverage for the variable innodb_ft_user_stopword_table.
buf_dump(), buf_load(): Protect srv_buf_dump_filename with
LOCK_global_system_variables.
fts_load_user_stopword(): Minor cleanup
fts_load_stopword(): Remove the parameter global_stopword_table.
innobase_fts_load_stopword(): Protect innodb_server_stopword_table
against concurrent SET GLOBAL.
row_prebuilt_free(): Do not attempt to drop orphan indexes
that might have been left behind by a failed ADD UNIQUE INDEX.
This avoids the execution of unwanted transactions during shutdown.
AUTO_INCREMENT values are nondeterministic after crash recovery.
While MDEV-6076 guarantees that the AUTO_INCREMENT values of committed
transactions will not roll back, it is possible that the AUTO_INCREMENT
values will be durably incremented for incomplete transactions. So
changing the test case to avoid showing the result of AUTO_INCREMENT value.
Problem:
=======
The problem is that InnoDB doesn't add the table in fts slots if drop table fails. InnoDB marks the table is in fts slots while processing sync message. So the consecutive alter statement assumes that table is in queue and tries to remove it. But InnoDB can't find the table in fts_slots.
Solution:
=========
i) Removal of in_queue in fts_t while processing the fts sync message.
ii) Add the table to fts_slots when drop table fails.
InnoDB: Assertion failure in file .../dict/dict0dict.cc line ...
InnoDB: Failing assertion: table->can_be_evicted
This fixes a regression that was caused by the fix of MDEV-20621
(commit a41d429765).
MySQL 5.6 (and MariaDB 10.0) introduced eviction of tables from
the InnoDB data dictionary cache. Tables that are connected to
FOREIGN KEY constraints or FULLTEXT INDEX are exempt of the eviction.
With the problematic change, a table that would already be exempt
from eviction due to FOREIGN KEY would cause the problem if there
also was a FULLTEXT INDEX defined on it.
dict_load_table(): Only prevent eviction if table->can_be_evicted holds.
