mariadb/mysql-test/suite/innodb_fts/t/fulltext_distinct.test
Aleksey Midenkov e056efdd6c MDEV-25004 Missing row in FTS_DOC_ID_INDEX during DELETE HISTORY
1. In case of system-versioned table add row_end into FTS_DOC_ID index
   in fts_create_common_tables() and innobase_create_key_defs().
   fts_n_uniq() returns 1 or 2 depending on whether the table is
   system-versioned.

   After this patch recreate of FTS_DOC_ID index is required for
   existing system-versioned tables. If you see this message in error
   log or server warnings: "InnoDB: Table db/t1 contains 2 indexes
   inside InnoDB, which is different from the number of indexes 1
   defined in the MariaDB" use this command to fix the table:

      ALTER TABLE db.t1 FORCE;

2. Fix duplicate history for secondary unique index like it was done
   in MDEV-23644 for clustered index (932ec586aa). In case of
   existing history row which conflicts with currently inseted row we
   check in row_ins_scan_sec_index_for_duplicate() whether that row
   was inserted as part of current transaction. In that case we
   indicate with DB_FOREIGN_DUPLICATE_KEY that new history row is not
   needed and should be silently skipped.

3. Some parts of MDEV-21138 (7410ff436e) reverted. Skipping of
   FTS_DOC_ID index for history rows made problems with purge
   system. Now this is fixed differently by p.2.

4. wait_all_purged.inc checks that we didn't affect non-history rows
   so they are deleted and purged correctly.

Additional FTS fixes

  fts_init_get_doc_id(): exclude history rows from max_doc_id
  calculation. fts_init_get_doc_id() callback is used only for crash
  recovery.

  fts_add_doc_by_id(): set max value for row_end field.

  fts_read_stopword(): stopwords table can be system-versioned too. We
  now read stopwords only for current data.

  row_insert_for_mysql(): exclude history rows from doc_id validation.

  row_merge_read_clustered_index(): exclude history_rows from doc_id
  processing.

  fts_load_user_stopword(): for versioned table retrieve row_end field
  and skip history rows. For non-versioned table we retrieve 'value'
  field twice (just for uniformity).

FTS tests for System Versioning now include maybe_versioning.inc which
adds 3 combinations:

'vers'     for debug build sets sysvers_force and
	   sysvers_hide. sysvers_force makes every created table
	   system-versioned, sysvers_hide hides WITH SYSTEM VERSIONING
	   for SHOW CREATE.

	   Note: basic.test, stopword.test and versioning.test do not
	   require debug for 'vers' combination. This is controlled by
	   $modify_create_table in maybe_versioning.inc and these
	   tests run WITH SYSTEM VERSIONING explicitly which allows to
	   test 'vers' combination on non-debug builds.

'vers_trx' like 'vers' sets sysvers_force_trx and sysvers_hide. That
	   tests FTS with trx_id-based System Versioning.

'orig' 	   works like before: no System Versioning is added, no debug is
	   required.

Upgrade/downgrade test for System Versioning is done by
innodb_fts.versioning. It has 2 combinations:

'prepare' makes binaries in std_data (requires old server and OLD_BINDIR).
	  It tests upgrade/downgrade against old server as well.

'upgrade' tests upgrade against binaries in std_data.

Cleanups:

Removed innodb-fts-stopword.test as it duplicates stopword.test
2022-12-27 00:02:02 +03:00

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Text

#
# Test of fulltext index
# bug reported by Tibor Simko <tibor.simko@cern.ch>
#
--source include/have_innodb.inc
--source include/maybe_versioning.inc
--disable_warnings
DROP TABLE IF EXISTS t1, t2;
--enable_warnings
CREATE TABLE t1 (
id mediumint unsigned NOT NULL auto_increment,
tag char(6) NOT NULL default '',
value text NOT NULL default '',
PRIMARY KEY (id),
KEY kt(tag),
KEY kv(value(15)),
FULLTEXT KEY kvf(value)
) ENGINE = InnoDB;
CREATE TABLE t2 (
id_t2 mediumint unsigned NOT NULL default '0',
id_t1 mediumint unsigned NOT NULL default '0',
field_number tinyint unsigned NOT NULL default '0',
PRIMARY KEY (id_t2,id_t1,field_number),
KEY id_t1(id_t1)
) ENGINE = InnoDB;
INSERT INTO t1 (tag,value) VALUES ('foo123','bar111');
INSERT INTO t1 (tag,value) VALUES ('foo123','bar222');
INSERT INTO t1 (tag,value) VALUES ('bar345','baz333 ar');
INSERT INTO t2 VALUES (2231626,64280,0);
INSERT INTO t2 VALUES (2231626,64281,0);
INSERT INTO t2 VALUES (12346, 3, 1);
SELECT * FROM t1; SELECT * FROM t2;
SELECT DISTINCT t2.id_t2 FROM t2, t1
WHERE MATCH (t1.value) AGAINST ('baz333') AND t1.id = t2.id_t1;
SELECT DISTINCT t2.id_t2 FROM t2, t1
WHERE MATCH (t1.value) AGAINST ('baz333' IN BOOLEAN MODE)
AND t1.id = t2.id_t1;
DROP TABLE t1, t2;
# End of 4.1 tests