Merge with 1.0.11-7 Pre-GA - 2010-09-09

Updated results for failing test cases (In all cases the estimated number of rows was different)

mysql-test/suite/pbxt/r/negation_elimination.result

@@ -388,7 +388,7 @@ Table	Op	Msg_type	Msg_text
 test.t1	analyze	status	OK
 explain extended select a, not(not(a)), not(a <= 2 and not(a)), not(a not like "1"), not (a not in (1,2)), not(a != 2) from t1 where not(not(a)) having not(not(a));
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t1	index	NULL	a	5	NULL	21	100.00	Using where; Using index
+1	SIMPLE	t1	index	NULL	a	5	NULL	5	100.00	Using where; Using index
 Warnings:
 Note	1003	select `test`.`t1`.`a` AS `a`,(`test`.`t1`.`a` <> 0) AS `not(not(a))`,((`test`.`t1`.`a` > 2) or `test`.`t1`.`a`) AS `not(a <= 2 and not(a))`,(`test`.`t1`.`a` like '1') AS `not(a not like "1")`,(`test`.`t1`.`a` in (1,2)) AS `not (a not in (1,2))`,(`test`.`t1`.`a` = 2) AS `not(a != 2)` from `test`.`t1` where `test`.`t1`.`a` having `test`.`t1`.`a`
 drop table t1;

mysql-test/suite/pbxt/r/select.result

@@ -1384,52 +1384,52 @@ Table	Op	Msg_type	Msg_text
 test.t2	analyze	status	OK
 explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	Using where
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	Using where
 1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	1	test.t2.companynr	1	
 explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0 or t2.companynr < 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	Using where
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	Using where
 1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	1	test.t2.companynr	1	
 explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0 and t4.companynr > 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	Using where
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	Using where
 1	SIMPLE	t4	eq_ref	PRIMARY	PRIMARY	1	test.t2.companynr	1	
 explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t4	ALL	PRIMARY	NULL	NULL	NULL	12	Using where
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	
 explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 or companynr < 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t4	ALL	PRIMARY	NULL	NULL	NULL	12	Using where
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	
 explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 and companynr > 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t4	ALL	PRIMARY	NULL	NULL	NULL	12	Using where
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	
 explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0 or t2.companynr is null;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	12	
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	Using where
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	Using where
 explain select t2.companynr,companyname from t4 left join t2 using (companynr) where t2.companynr > 0 or t2.companynr < 0 or t4.companynr > 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t4	ALL	PRIMARY	NULL	NULL	NULL	12	
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	Using where
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	Using where
 explain select t2.companynr,companyname from t4 left join t2 using (companynr) where ifnull(t2.companynr,1)>0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	12	
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	Using where
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	Using where
 explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 or companynr is null;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t4	ALL	PRIMARY	NULL	NULL	NULL	12	Using where
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	
 explain select companynr,companyname from t4 left join t2 using (companynr) where companynr > 0 or companynr < 0 or companynr > 0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t4	ALL	PRIMARY	NULL	NULL	NULL	12	Using where
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	
 explain select companynr,companyname from t4 left join t2 using (companynr) where ifnull(companynr,1)>0;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t4	ALL	NULL	NULL	NULL	NULL	12	Using where
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	
 select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1;
 companynr	companynr
 37	36
@@ -1437,7 +1437,7 @@ companynr	companynr
 explain select distinct t2.companynr,t4.companynr from t2,t4 where t2.companynr=t4.companynr+1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	t4	index	NULL	PRIMARY	1	NULL	12	Using index; Using temporary
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	Using where; Using join buffer
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	Using where; Using join buffer
 select t2.fld1,t2.companynr,fld3,period from t3,t2 where t2.fld1 = 38208 and t2.fld1=t3.t2nr and period = 1008 or t2.fld1 = 38008 and t2.fld1 =t3.t2nr and period = 1008;
 fld1	companynr	fld3	period
 038008	37	reporters	1008
@@ -1511,7 +1511,7 @@ count(*)	min(fld4)	max(fld4)	sum(fld1)	avg(fld1)	std(fld1)	variance(fld1)
 70	absentee	vest	17788966	254128.0857	3272.5940	10709871.3069
 explain extended select count(*),min(fld4),max(fld4),sum(fld1),avg(fld1),std(fld1),variance(fld1) from t2 where companynr = 34 and fld4<>"";
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	filtered	Extra
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	100.00	Using where
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	100.00	Using where
 Warnings:
 Note	1003	select count(0) AS `count(*)`,min(`test`.`t2`.`fld4`) AS `min(fld4)`,max(`test`.`t2`.`fld4`) AS `max(fld4)`,sum(`test`.`t2`.`fld1`) AS `sum(fld1)`,avg(`test`.`t2`.`fld1`) AS `avg(fld1)`,std(`test`.`t2`.`fld1`) AS `std(fld1)`,variance(`test`.`t2`.`fld1`) AS `variance(fld1)` from `test`.`t2` where ((`test`.`t2`.`companynr` = 34) and (`test`.`t2`.`fld4` <> ''))
 select companynr,count(*),min(fld4),max(fld4),sum(fld1),avg(fld1),std(fld1),variance(fld1) from t2 group by companynr limit 3;
@@ -1955,7 +1955,7 @@ id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
 1	SIMPLE	NULL	NULL	NULL	NULL	NULL	NULL	NULL	Impossible WHERE
 explain select fld3 from t2 where fld1=fld1;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1200	
+1	SIMPLE	t2	ALL	NULL	NULL	NULL	NULL	1199	
 select companynr,fld1 from t2 HAVING fld1=250501 or fld1=250502;
 companynr	fld1
 34	250501
@@ -2007,7 +2007,7 @@ count(*)
 4181
 explain select min(fld1),max(fld1),count(*) from t2;
 id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
-1	SIMPLE	t2	index	NULL	fld1	4	NULL	1200	Using index
+1	SIMPLE	t2	index	NULL	fld1	4	NULL	1199	Using index
 select min(fld1),max(fld1),count(*) from t2;
 min(fld1)	max(fld1)	count(*)
 0	1232609	1199
@@ -2093,9 +2093,9 @@ show full columns from t2 from test like 's%';
 Field	Type	Collation	Null	Key	Default	Extra	Privileges	Comment
 show keys from t2;
 Table	Non_unique	Key_name	Seq_in_index	Column_name	Collation	Cardinality	Sub_part	Packed	Null	Index_type	Comment
-t2	0	PRIMARY	1	auto	A	1200	NULL	NULL		BTREE	
-t2	0	fld1	1	fld1	A	1200	NULL	NULL		BTREE	
-t2	1	fld3	1	fld3	A	1200	NULL	NULL		BTREE	
+t2	0	PRIMARY	1	auto	A	1199	NULL	NULL		BTREE	
+t2	0	fld1	1	fld1	A	1199	NULL	NULL		BTREE	
+t2	1	fld3	1	fld3	A	1199	NULL	NULL		BTREE	
 drop table t4, t3, t2, t1;
 DO 1;
 DO benchmark(100,1+1),1,1;

storage/pbxt/ChangeLog

 PBXT Release Notes
 ==================
 
-+------- 1.0.11 Pre-GA - 2010-05-11
+------- 1.0.11-7 Pre-GA - 2010-09-09
+
+RN336: Compiled and tested with MySQL 5.1.50.
+
+RN335: Fixed bug #523994: Deleting all records does not update table statistics. 
+
+RN334: Made a change to reduce the time that only temporary tables exist during the ALTER TABLE and REPAIR TABLE statements. This increases the chance of recovery if a crash occurs during these operations.
+
+RN333: Log name of table when PBXT recovers an index on startup. If an error occurs during index recovery, the index is set to "repair pending".
+
+RN332: Fixed an inifinite loop when a record in a row is corrupt. Added logging and set the table to "repair pending" in this case.
+
+RN331: Fixed bug #626890: Crash on truncate table operation.
+
+RN330: Added additional checks for corruption of the index free list.
+
+------- 1.0.11-6 Pre-GA - 2010-07-08
+
+RN329: Fixed bug #601245: make fails. PBXT did not compile if the partition engine was disabled in the MySQL build.
+
+------- 1.0.11-5 Pre-GA - 2010-06-18
+
+RN328: Fixed bug #595478: Compile fails (1.0.11-4).
+
+------- 1.0.11-4 Pre-GA - 2010-06-15
+
+RN327: Fixed a bug that caused a crash during delete on the index. The crash occurred due to memory overwrite when a long key is promoted after a shorter key is deleted, and the difference causes a node size overflow.
+
+------- 1.0.11-3 Pre-GA - 2010-06-11
+
+RN326: Fixed bug #587740: pbxt-1.0.11-pre2-ga first time create partition table error. This was not a new bug. The problem was the PBXT system table's .frm files are corrupted when the first PBXT table created is a partition table.
+
+RN325: Fixed the "to-sweep" column output in xtstat.
+
+------- 1.0.11-2 Pre-GA - 2010-05-26
+
+RN324: Fixed bug #584070:pbxt-1.0.11-pre-ga does not work with mysql 5.1.47. This bug fix removes a hack which was done to avoid running into the LOCK_plugin lock.
+
+------- 1.0.11-1 Pre-GA - 2010-05-19
+
+RN323: Detect corruption of a key length in an index page. This bug fix avoids a possible crash due to index page corruption. 
+
+------- 1.0.11 Pre-GA - 2010-05-11
 
 RN322: Creating a table the references a non-existing table can now only be done if you set: foreign_key_checks = 0. Also fixed a failure when creating tables with recursive foreign key declarations.
 

storage/pbxt/src/Makefile.am

@@ -40,8 +40,8 @@ libpbxt_la_LDFLAGS =	-module
 # These are the warning Drizzle uses:
 # DRIZZLE_WARNINGS =		-W -Wall -Wextra -pedantic -Wundef -Wredundant-decls -Wno-strict-aliasing -Wno-long-long -Wno-unused-parameter
 
-libpbxt_la_CXXFLAGS =	-shared $(AM_CXXFLAGS) -DMYSQL_DYNAMIC_PLUGIN
-libpbxt_la_CFLAGS =	-shared $(AM_CFLAGS) -DMYSQL_DYNAMIC_PLUGIN -std=c99
+libpbxt_la_CXXFLAGS =	$(AM_CXXFLAGS) -DMYSQL_DYNAMIC_PLUGIN
+libpbxt_la_CFLAGS =		$(AM_CFLAGS) -DMYSQL_DYNAMIC_PLUGIN -std=c99
 
 EXTRA_LIBRARIES =		libpbxt.a
 noinst_LIBRARIES = 		libpbxt.a

storage/pbxt/src/cache_xt.cc

@@ -667,6 +667,9 @@ xtPublic void xt_ind_init(XTThreadPtr self, size_t cache_size)
 #ifdef XT_USE_DIRECT_IO_ON_INDEX
 			block->cb_data = buffer;
 			buffer += XT_INDEX_PAGE_SIZE;
+#endif
+#ifdef CHECK_BLOCK_TRAILERS
+			XT_SET_DISK_4(block->cp_check, 0xDEADBEEF);
 #endif
 			ind_cac_globals.cg_free_list = block;
 			block++;
@@ -684,6 +687,19 @@ xtPublic void xt_ind_init(XTThreadPtr self, size_t cache_size)
 	cont_(a);
 }
 
+#ifdef CHECK_BLOCK_TRAILERS
+xtPublic void check_block_trailers()
+{
+	XTIndBlockPtr	block;
+
+	block = ind_cac_globals.cg_blocks;
+	for (u_int i=0; i<ind_cac_globals.cg_block_count; i++) {
+		ASSERT_NS(XT_GET_DISK_4(block->cp_check) == 0xDEADBEEF);
+		block++;
+	}
+}
+#endif
+
 xtPublic void xt_ind_exit(XTThreadPtr self)
 {
 #ifdef XT_USE_MYSYS
@@ -1283,7 +1299,7 @@ static XTIndBlockPtr ind_cac_fetch(XTOpenTablePtr ot, XTIndexPtr ind, xtIndexNod
 	 * Conditionally count the number of deleted entries in the index:
 	 * We do this before other threads can read the block.
 	 */
-	if (ind->mi_lazy_delete && read_data)
+	if (ind && ind->mi_lazy_delete && read_data)
 		xt_ind_count_deleted_items(ot->ot_table, ind, block);
 
 	/* Add to the hash table: */
@@ -1357,6 +1373,9 @@ xtPublic xtBool xt_ind_write(XTOpenTablePtr ot, XTIndexPtr ind, xtIndexNodeID ad
 	IDX_CAC_UNLOCK(seg, ot->ot_thread);
 #ifdef XT_TRACK_INDEX_UPDATES
 	ot->ot_ind_changed++;
+#endif
+#ifdef CHECK_BLOCK_TRAILERS
+	check_block_trailers();
 #endif
 	return OK;
 }

storage/pbxt/src/cache_xt.h

@@ -33,6 +33,7 @@ struct XTIdxReadBuffer;
 
 #ifdef DEBUG
 //#define XT_USE_CACHE_DEBUG_SIZES
+//#define CHECK_BLOCK_TRAILERS
 #endif
 
 #ifdef XT_USE_CACHE_DEBUG_SIZES
@@ -116,6 +117,9 @@ typedef struct XTIndBlock {
 #else
 	xtWord1				cb_data[XT_INDEX_PAGE_SIZE];
 #endif
+#ifdef CHECK_BLOCK_TRAILERS
+	xtWord1				cp_check[4];
+#endif
 } XTIndBlockRec, *XTIndBlockPtr;
 
 typedef struct XTIndReference {
@@ -177,6 +181,10 @@ xtBool			xt_ind_copy_on_write(XTIndReferencePtr iref);
 XTIndHandlePtr	xt_ind_get_handle(struct XTOpenTable *ot, XTIndexPtr ind, XTIndReferencePtr iref);
 void			xt_ind_release_handle(XTIndHandlePtr handle, xtBool have_lock, XTThreadPtr thread);
 
+#ifdef CHECK_BLOCK_TRAILERS
+extern void check_block_trailers();
+#endif
+
 #ifdef DEBUG
 //#define DEBUG_CHECK_IND_CACHE
 #endif

storage/pbxt/src/database_xt.h

@@ -117,6 +117,7 @@ typedef struct XTDatabase : public XTHeap {
 	XTSortedListPtr			db_table_by_id;
 	XTSortedListPtr			db_table_paths;							/* A list of table paths used by this database. */
 	xtBool					db_multi_path;
+	XTSortedListPtr			db_error_list;							/* A list of errors already reported. */
 
 	/* The open table pool: */
 	XTAllTablePoolsRec		db_ot_pool;

storage/pbxt/src/datadic_xt.cc

@@ -396,7 +396,7 @@ void XTToken::expectNumber(XTThreadPtr self)
 struct charset_info_st;
 
 class XTTokenizer {
-	struct charset_info_st	*tkn_charset;
+	MX_CONST_CHARSET_INFO	*tkn_charset;
 	char					*tkn_cstring;
 	char					*tkn_curr_pos;
 	XTToken					*tkn_current;
@@ -1324,7 +1324,7 @@ void XTParseTable::parseDropIndex(XTThreadPtr self)
 class XTCreateTable : public XTParseTable {
 	public:
 	bool					ct_convert;
-	struct charset_info_st	*ct_charset;
+	MX_CONST_CHARSET_INFO	*ct_charset;
 	XTPathStrPtr			ct_tab_path;
 	u_int					ct_contraint_no;
 	XTDDTable				*ct_curr_table;
@@ -2039,11 +2039,6 @@ void XTDDTableRef::deleteAllRows(XTThreadPtr self)
 	if (!(ot = xt_db_open_table_using_tab(tr_fkey->co_table->dt_table, self)))
 		xt_throw(self);
 
-	/* {FREE-ROWS-BAD} */
-	/*
-	row_count = ((xtInt8) ot->ot_table->tab_row_eof_id) - 1;
-	row_count -= (xtInt8) ot->ot_table->tab_row_fnum;
-	*/
 	/* Check if there are any rows in the referencing table: */
 	if (!xt_tab_seq_init(ot))
 		goto failed;

storage/pbxt/src/datalog_xt.cc

@@ -1249,7 +1249,7 @@ xtBool XTDataLogBuffer::dlb_write_thru_log(xtLogID XT_NDEBUG_UNUSED(log_id), xtL
 	 */
 	dlb_data_log->dlf_log_eof += size;
 #ifdef DEBUG
-	if ((ulonglong) (log_offset + size) > (ulonglong) dlb_max_write_offset)
+	if (log_offset + (xtLogOffset) size > (xtLogOffset) dlb_max_write_offset)
 		dlb_max_write_offset = log_offset + size;
 #endif
 	dlb_flush_required = TRUE;
@@ -1291,7 +1291,7 @@ xtBool XTDataLogBuffer::dlb_append_log(xtLogID XT_NDEBUG_UNUSED(log_id), xtLogOf
 	if (!xt_pwrite_file(dlb_data_log->dlf_log_file, log_offset, size, data, &thread->st_statistics.st_data, thread))
 		return FAILED;
 #ifdef DEBUG
-	if ((ulonglong) (log_offset + size) > (ulonglong) dlb_max_write_offset)
+	if (log_offset + (xtLogOffset) size > (xtLogOffset) dlb_max_write_offset)
 		dlb_max_write_offset = log_offset + size;
 #endif
 	dlb_flush_required = TRUE;
@@ -1734,8 +1734,8 @@ static xtBool dl_collect_garbage(XTThreadPtr self, XTDatabaseHPtr db, XTDataLogF
 	xtLogOffset			src_log_offset;
 	xtLogID				curr_log_id;
 	xtLogOffset			curr_log_offset;
-	xtLogID				dest_log_id= 0;
-	xtLogOffset			dest_log_offset= 0;
+	xtLogID				dest_log_id = 0;
+	xtLogOffset			dest_log_offset = 0;
 	off_t				garbage_count = 0;
 
 	memset(&cs, 0, sizeof(XTCompactorStateRec));

storage/pbxt/src/discover_xt.cc

@@ -1622,7 +1622,11 @@ int xt_create_table_frm(handlerton *hton, THD* thd, const char *db, const char *
 				COLUMN_FORMAT_TYPE_FIXED,
 #endif
 		       NULL /*default_value*/, NULL /*on_update_value*/, &comment, NULL /*change*/, 
-		       NULL /*interval_list*/, info->field_charset, 0 /*uint_geom_type*/)) 
+		       NULL /*interval_list*/, info->field_charset, 0 /*uint_geom_type*/
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID > 50200
+		       , NULL /*vcol_info*/, NULL /* create options */
+#endif
+		       )) 
 #endif
 			goto error;
 
@@ -1654,8 +1658,17 @@ int xt_create_table_frm(handlerton *hton, THD* thd, const char *db, const char *
 	if (mysql_create_table_no_lock(thd, db, name, &create_info, &table_proto, &stmt->alter_info, 1, 0)) 
 		goto error;
 #else
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+	partition_info *part_info;
+
+	part_info = thd->work_part_info;
+	thd->work_part_info = NULL;
+#endif
 	if (mysql_create_table_no_lock(thd, db, name, &mylex.create_info, &mylex.alter_info, 1, 0)) 
 		goto error;
+#ifdef WITH_PARTITION_STORAGE_ENGINE
+	thd->work_part_info = part_info;
+#endif
 #endif
 
 	noerror:

storage/pbxt/src/ha_pbxt.cc

@@ -1232,6 +1232,11 @@ static int pbxt_init(void *p)
 				THD *thd = NULL;
 
 #ifndef DRIZZLED
+#if MYSQL_VERSION_ID < 50147
+				/* A hack which is no longer required after 5.1.46 */
+				extern myxt_mutex_t LOCK_plugin;
+#endif
+
 				/* {MYSQL QUIRK}
 				 * I have to release this lock for PBXT recovery to
 				 * work, because it needs to open .frm files.
@@ -1248,8 +1253,7 @@ static int pbxt_init(void *p)
 				 * Only real problem, 2 threads try to load the same
 				 * plugin at the same time.
 				 */
-#if MYSQL_VERSION_ID <= 50146
-				extern myxt_mutex_t LOCK_plugin;
+#if MYSQL_VERSION_ID < 50147
 				myxt_mutex_unlock(&LOCK_plugin);
 #endif
 #endif
@@ -1285,8 +1289,10 @@ static int pbxt_init(void *p)
 
 				if (thd)
 					myxt_destroy_thread(thd, FALSE);
-#if MYSQL_VERSION_ID <= 50146 && !defined(DRIZZLED)
+#ifndef DRIZZLED
+#if MYSQL_VERSION_ID < 50147
 				myxt_mutex_lock(&LOCK_plugin);
+#endif
 #endif
 			}
 #endif
@@ -1948,8 +1954,13 @@ xtPublic int ha_pbxt::reopen()
 			 * selectity of the indices, as soon as the number of rows
 			 * exceeds 200 (see [**])
 			 */
+#ifdef XT_ROW_COUNT_CORRECTED
+			/* {CORRECTED-ROW-COUNT} */
+			pb_share->sh_recalc_selectivity = (pb_share->sh_table->tab_row_eof_id - 1 - pb_share->sh_table->tab_row_fnum) < 150;
+#else
 			/* {FREE-ROWS-BAD} */
 			pb_share->sh_recalc_selectivity = (pb_share->sh_table->tab_row_eof_id - 1 /* - pb_share->sh_table->tab_row_fnum */) < 150;
+#endif
 		}
 
 		/* I am not doing this anymore because it was only required
@@ -2006,7 +2017,7 @@ static int pbxt_statistics_fill_table(THD *thd, TABLE_LIST *tables, COND *cond)
 			xt_ha_open_database_of_table(self, (XTPathStrPtr) NULL);
 		}
 
-		err = myxt_statistics_fill_table(self, thd, tables, cond, system_charset_info);
+		err = myxt_statistics_fill_table(self, thd, tables, cond, (void*) system_charset_info);
 	}
 	catch_(a) {
 		err = xt_ha_pbxt_thread_error_for_mysql(thd, self, FALSE);
@@ -2296,6 +2307,36 @@ void ha_pbxt::internal_close(THD *thd, struct XTThread *self)
 					 */
 					if (!thd || thd_sql_command(thd) == SQLCOM_FLUSH) // FLUSH TABLES
 						xt_sync_flush_table(self, ot);
+					else {
+						/* This change is a result of a problem mentioned by Arjen.
+						 * REPAIR and ALTER lead to the following sequence:
+						 * 1. tab  -- copy --> tmp1
+						 * 2. tab  -- rename --> tmp2
+						 * 3. tmp1 -- rename --> tab
+						 * 4. delete tmp2
+						 *
+						 * PBXT flushes a table before rename.
+						 * In the sequence above results in a table flush in step 3 which can
+						 * take a very long time.
+						 *
+						 * The problem is, during this time frame we have only temp tables.
+						 * A crash in this state leaves the database in a bad state.
+						 *
+						 * To reduce the time in this state, the flush needs to be done
+						 * elsewhere. The code below causes the flish to occur after
+						 * step 1:
+						 */ 
+						switch (thd_sql_command(thd)) {
+							case SQLCOM_REPAIR:
+							case SQLCOM_RENAME_TABLE:
+							case SQLCOM_OPTIMIZE:
+							case SQLCOM_ANALYZE:
+							case SQLCOM_ALTER_TABLE:
+							case SQLCOM_CREATE_INDEX:
+								xt_sync_flush_table(self, ot);
+								break;
+						}
+					}
 				}
 				freer_(); // xt_db_return_table_to_pool(ot);
 			}
@@ -2356,9 +2397,15 @@ int ha_pbxt::open(const char *table_path, int XT_UNUSED(mode), uint XT_UNUSED(te
 #else
 			xt_tab_load_row_pointers(self, pb_open_tab);
 #endif
+
 			xt_ind_set_index_selectivity(pb_open_tab, self);
+#ifdef XT_ROW_COUNT_CORRECTED
+			/* {CORRECTED-ROW-COUNT} */
+			pb_share->sh_recalc_selectivity = (pb_share->sh_table->tab_row_eof_id - 1 - pb_share->sh_table->tab_row_fnum) < 150;
+#else
 			/* {FREE-ROWS-BAD} */
 			pb_share->sh_recalc_selectivity = (pb_share->sh_table->tab_row_eof_id - 1 /* - pb_share->sh_table->tab_row_fnum */) < 150;
+#endif
 		}
 
 		init_auto_increment(0);
@@ -3929,6 +3976,8 @@ int ha_pbxt::info(uint flag)
 
 	if ((ot = pb_open_tab)) {
 		if (flag & HA_STATUS_VARIABLE) {
+				register XTTableHPtr tab = ot->ot_table;
+
 			/* {FREE-ROWS-BAD}
 			 * Free row count is not reliable, so ignore it.
 			 * The problem is if tab_row_fnum > tab_row_eof_id - 1 then
@@ -3955,11 +4004,26 @@ int ha_pbxt::info(uint flag)
 			 * the actual number of vectors. But it must assume that it has at
 			 * least EXTRA_RECORDS vectors.
 			 */
-			stats.deleted = /* ot->ot_table->tab_row_fnum */ 0;
-			stats.records = (ha_rows) (ot->ot_table->tab_row_eof_id - 1 /* - stats.deleted */);
-			stats.data_file_length = xt_rec_id_to_rec_offset(ot->ot_table, ot->ot_table->tab_rec_eof_id);
-			stats.index_file_length = xt_ind_node_to_offset(ot->ot_table, ot->ot_table->tab_ind_eof);
-			stats.delete_length = ot->ot_table->tab_rec_fnum * ot->ot_rec_size;
+#ifdef XT_ROW_COUNT_CORRECTED
+			if (tab->tab_row_eof_id <= tab->tab_row_fnum ||
+				(!tab->tab_row_free_id && tab->tab_row_fnum))
+				xt_tab_check_free_lists(NULL, ot, false, true);
+			stats.records = (ha_rows) tab->tab_row_eof_id - 1;
+			if (stats.records >= tab->tab_row_fnum) {
+				stats.deleted = tab->tab_row_fnum;
+				stats.records -= stats.deleted;
+			}
+			else {
+				stats.deleted = 0;
+				stats.records = 2;
+			}
+#else
+			stats.deleted = /* tab->tab_row_fnum */ 0;
+			stats.records = (ha_rows) (tab->tab_row_eof_id - 1 /* - stats.deleted */);
+#endif
+			stats.data_file_length = xt_rec_id_to_rec_offset(tab, tab->tab_rec_eof_id);
+			stats.index_file_length = xt_ind_node_to_offset(tab, tab->tab_ind_eof);
+			stats.delete_length = tab->tab_rec_fnum * ot->ot_rec_size;
 			//check_time = info.check_time;
 			stats.mean_rec_length = (ulong) ot->ot_rec_size;
 		}
@@ -4584,13 +4648,24 @@ xtPublic int ha_pbxt::external_lock(THD *thd, int lock_type)
 				}
 
 				if (pb_share->sh_recalc_selectivity) {
+#ifdef XT_ROW_COUNT_CORRECTED
+					/* {CORRECTED-ROW-COUNT} */
+					if ((pb_share->sh_table->tab_row_eof_id - 1 - pb_share->sh_table->tab_row_fnum) >= 200)
+#else
 					/* {FREE-ROWS-BAD} */
-					if ((pb_share->sh_table->tab_row_eof_id - 1 /* - pb_share->sh_table->tab_row_fnum */) >= 200) {
+					if ((pb_share->sh_table->tab_row_eof_id - 1 /* - pb_share->sh_table->tab_row_fnum */) >= 200)
+#endif
+					{
 						/* [**] */
 						pb_share->sh_recalc_selectivity = FALSE;
 						xt_ind_set_index_selectivity(pb_open_tab, self);
+#ifdef XT_ROW_COUNT_CORRECTED
+						/* {CORRECTED-ROW-COUNT} */
+						pb_share->sh_recalc_selectivity = (pb_share->sh_table->tab_row_eof_id - 1 - pb_share->sh_table->tab_row_fnum) < 150;
+#else
 						/* {FREE-ROWS-BAD} */
 						pb_share->sh_recalc_selectivity = (pb_share->sh_table->tab_row_eof_id - 1 /* - pb_share->sh_table->tab_row_fnum */) < 150;
+#endif
 					}
 				}
 			}
@@ -4638,6 +4713,17 @@ xtPublic int ha_pbxt::external_lock(THD *thd, int lock_type)
 				goto complete;
 			}
 			cont_(a);
+
+			/* Occurs if you do:
+			 * truncate table t1;
+			 * truncate table t1;
+			 */
+			if (!pb_open_tab) {
+				if ((err = reopen())) {
+					pb_ex_in_use = 0;
+					goto complete;
+				}
+			}
 		}
 		else {
 			pb_ex_in_use = 1;
@@ -6076,6 +6162,40 @@ mysql_declare_plugin(pbxt)
 drizzle_declare_plugin_end;
 #else
 mysql_declare_plugin_end;
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID > 50200
+maria_declare_plugin(pbxt)
+{ /* PBXT */
+  MYSQL_STORAGE_ENGINE_PLUGIN,
+  &pbxt_storage_engine,
+  "PBXT",
+  "Paul McCullagh, PrimeBase Technologies GmbH",
+  "High performance, multi-versioning transactional engine",
+  PLUGIN_LICENSE_GPL,
+  pbxt_init, /* Plugin Init */
+  pbxt_end, /* Plugin Deinit */
+  0x0001 /* 0.1 */,
+  NULL,                       /* status variables */
+  pbxt_system_variables,      /* system variables */
+  "1.0.11-7 Pre-GA",              /* string version */
+  MariaDB_PLUGIN_MATURITY_GAMMA /* maturity */
+},
+{ /* PBXT_STATISTICS */
+  MYSQL_INFORMATION_SCHEMA_PLUGIN,
+  &pbxt_statitics,
+  "PBXT_STATISTICS",
+  "Paul McCullagh, PrimeBase Technologies GmbH",
+  "PBXT internal system statitics",
+  PLUGIN_LICENSE_GPL,
+  pbxt_init_statistics,       /* plugin init */
+  pbxt_exit_statistics,       /* plugin deinit */
+  0x0005,
+  NULL,                       /* status variables */
+  NULL,                       /* system variables */
+  "1.0.11-7 Pre-GA",          /* string version */
+  MariaDB_PLUGIN_MATURITY_GAMMA /* maturity */
+}
+maria_declare_plugin_end;
+#endif
 #endif
 
 #if defined(XT_WIN) && defined(XT_COREDUMP)

storage/pbxt/src/index_xt.h

@@ -312,7 +312,7 @@ typedef struct XTIndex {
 	u_int				mi_flags;
 	u_int				mi_key_size;
 	u_int				mi_max_items;				/* The maximum number of items that can fit in a leaf node. */
-	xtBool				mi_low_byte_first;
+	xtBool				mi_key_corrupted;			/* Set to TRUE if a currupted index key is detected. */
 	xtBool				mi_fix_key;
 	xtBool				mi_lazy_delete;				/* TRUE if index entries are "lazy deleted". */
 	u_int				mi_single_type;				/* Used when the index contains a single field. */

storage/pbxt/src/myxt_xt.cc

@@ -1088,7 +1088,10 @@ xtPublic u_int myxt_get_key_length(XTIndexPtr ind, xtWord1 *key_buf)
 	}
 
 	end:
-	return (xtWord1 *) key_data - key_buf;
+	u_int ilen = (xtWord1 *) key_data - key_buf;
+	if (ilen > XT_INDEX_MAX_KEY_SIZE)
+		ind->mi_key_corrupted = TRUE;
+	return ilen;
 }
 
 /* Derived from ha_key_cmp */
@@ -2183,7 +2186,8 @@ static XTIndexPtr my_create_index(XTThreadPtr self, TABLE *table_arg, u_int idx,
 	xt_spinlock_init_with_autoname(self, &ind->mi_dirty_lock);
 	ind->mi_index_no = idx;
 	ind->mi_flags = (index->flags & (HA_NOSAME | HA_NULL_ARE_EQUAL | HA_UNIQUE_CHECK));
-	ind->mi_low_byte_first = TS(table_arg)->db_low_byte_first;
+	//ind->mi_low_byte_first = TS(table_arg)->db_low_byte_first;
+	ind->mi_key_corrupted = FALSE;
 	ind->mi_fix_key = TRUE;
 	ind->mi_select_total = 0;
 	ind->mi_subset_of = 0;

storage/pbxt/src/myxt_xt.h

@@ -69,17 +69,17 @@ void		myxt_free_dictionary(XTThreadPtr self, XTDictionary *dic);
 void		myxt_move_dictionary(XTDictionaryPtr dic, XTDictionaryPtr source_dic);
 XTDDTable	*myxt_create_table_from_table(XTThreadPtr self, STRUCT_TABLE *my_tab);
 
-void		myxt_static_convert_identifier(XTThreadPtr self, struct charset_info_st *cs, char *from, char *to, size_t to_len);
-char		*myxt_convert_identifier(XTThreadPtr self, struct charset_info_st *cs, char *from);
+void		myxt_static_convert_identifier(XTThreadPtr self, MX_CONST_CHARSET_INFO *cs, char *from, char *to, size_t to_len);
+char		*myxt_convert_identifier(XTThreadPtr self, MX_CONST_CHARSET_INFO *cs, char *from);
 void		myxt_static_convert_table_name(XTThreadPtr self, char *from, char *to, size_t to_len);
 void		myxt_static_convert_file_name(char *from, char *to, size_t to_len);
 char		*myxt_convert_table_name(XTThreadPtr self, char *from);
 int			myxt_strcasecmp(char * a, char *b);
-int			myxt_isspace(struct charset_info_st *cs, char a);
-int			myxt_ispunct(struct charset_info_st *cs, char a);
-int			myxt_isdigit(struct charset_info_st *cs, char a);
+int			myxt_isspace(MX_CONST_CHARSET_INFO *cs, char a);
+int			myxt_ispunct(MX_CONST_CHARSET_INFO *cs, char a);
+int			myxt_isdigit(MX_CONST_CHARSET_INFO *cs, char a);
 
-struct charset_info_st *myxt_getcharset(bool convert);
+MX_CONST_CHARSET_INFO *myxt_getcharset(bool convert);
 
 void		*myxt_create_thread();
 void		myxt_destroy_thread(void *thread, xtBool end_threads);

storage/pbxt/src/restart_xt.cc

@@ -1359,6 +1359,57 @@ static xtBool xres_sync_operations(XTThreadPtr self, XTDatabaseHPtr db, XTWriter
 	return op_synced;
 }
 
+#ifdef XT_CORRECT_TABLE_FREE_COUNT
+#define CORRECT_COUNT		TRUE
+#else
+#define CORRECT_COUNT		FALSE
+#endif
+#ifdef XT_CHECK_RECORD_FREE_COUNT
+#define CHECK_RECS			TRUE
+#else
+#define CHECK_RECS			FALSE
+#endif
+#if defined(XT_CHECK_RECORD_FREE_COUNT) || defined(XT_CHECK_ROW_FREE_COUNT)
+#define RECOVER_FREE_COUNTS
+#endif
+
+#ifdef RECOVER_FREE_COUNTS
+/* {CORRECTED-ROW-COUNT}
+ * This error can be repeated by crashing the server during
+ * high activitity, after flush table writes the table header
+ * 
+ * On recovery, the free count "from the future" is used as
+ * the starting point for subsequent allocation and frees.
+ * The count is wrong after that point.
+ *
+ * The recovery of the count only works correctly if a
+ * checkpoint is complete successfully after that table
+ * header is flushed. Basically the writing of the table
+ * header should be synchronsized with the writing of the
+ * end of the checkpoint.
+ *
+ * Another solution would be to log the count, along with
+ * the allocate and free commannds.
+ *
+ * The 3rd solution is the one used here. The count is corrected
+ * after recovery.
+ */
+static void xres_recover_table_free_counts(XTThreadPtr self, XTDatabaseHPtr db, XTWriterStatePtr ws)
+{
+	u_int			edx;
+	XTTableEntryPtr	te_ptr;
+	XTTableHPtr		tab;
+
+	xt_enum_tables_init(&edx);
+	while ((te_ptr = xt_enum_tables_next(self, db, &edx))) {
+		if ((tab = te_ptr->te_table)) {
+			if (xres_open_table(self, ws, te_ptr->te_tab_id))
+				xt_tab_check_free_lists(self, ws->ws_ot, CHECK_RECS, CORRECT_COUNT);
+		}
+	}
+}
+#endif
+
 /*
  * Operations from the log are applied in sequence order.
  * If the operations are out of sequence, they are buffered
@@ -2175,6 +2226,13 @@ xtBool XTXactRestart::xres_restart(XTThreadPtr self, xtLogID *log_id, xtLogOffse
 			/* This is true because if no transaction was placed in RAM then
 			 * the next transaction in RAM will have the next ID: */
 			db->db_xn_min_ram_id = db->db_xn_curr_id + 1;
+
+#ifdef RECOVER_FREE_COUNTS
+		if (xres_cp_log_id != *log_id || xres_cp_log_offset != *log_offset) {
+			/* Recovery took place, correct the row count! */
+			xres_recover_table_free_counts(self, db, &ws);
+		}
+#endif
 	}
 
 	failed:

storage/pbxt/src/strutil_xt.cc

@@ -380,7 +380,7 @@ xtPublic void xt_int8_to_byte_size(xtInt8 value, char *string)
 /* Version number must also be set in configure.in! */
 xtPublic c_char *xt_get_version(void)
 {
-	return "1.0.11 Pre-GA";
+	return "1.0.11-7 Pre-GA";
 }
 
 /* Copy and URL decode! */

storage/pbxt/src/table_xt.h

@@ -507,6 +507,7 @@ int					xt_tab_compare_names(const char *n1, const char *n2);
 int					xt_tab_compare_paths(char *n1, char *n2);
 void				xt_tab_init_db(struct XTThread *self, struct XTDatabase *db);
 void				xt_tab_exit_db(struct XTThread *self, struct XTDatabase *db);
+void				xt_tab_check_free_lists(struct XTThread *self, XTOpenTablePtr ot, bool check_recs, bool correct_count);
 void				xt_check_tables(struct XTThread *self);
 
 char				*xt_tab_file_to_name(size_t size, char *tab_name, char *file_name);
@@ -572,6 +573,7 @@ xtBool				xt_tab_get_rec_data(register XTOpenTablePtr ot, xtRecordID rec_id, siz
 void				xt_tab_disable_index(XTTableHPtr tab, u_int ind_error);
 void				xt_tab_set_index_error(XTTableHPtr tab);
 
+void				xt_tab_make_table_name(XTTableHPtr tab, char *table_name, size_t size);
 xtBool				xt_tab_is_table_repair_pending(XTTableHPtr tab);
 void				xt_tab_table_repaired(XTTableHPtr tab);
 void				xt_tab_set_table_repair_pending(XTTableHPtr tab);

storage/pbxt/src/thread_xt.cc

@@ -224,12 +224,17 @@ static void thr_log_va(XTThreadPtr self, c_char *func, c_char *file, u_int line,
 #else
 	/* Use the buffer, unless it is too small */
 	va_list ap2;
+	int bufsize;
 
 	va_copy(ap2, ap);
-	if (vsnprintf(buffer, DEFAULT_LOG_BUFFER_SIZE, fmt, ap) >= DEFAULT_LOG_BUFFER_SIZE) {
-		if (vasprintf(&log_string, fmt, ap2) == -1)
+	bufsize = vsnprintf(buffer, DEFAULT_LOG_BUFFER_SIZE, fmt, ap);
+	if (bufsize >= DEFAULT_LOG_BUFFER_SIZE) {
+		log_string = (char *) malloc(bufsize + 1);
+		if (vsnprintf(log_string, bufsize + 1, fmt, ap2) > bufsize) {
+			free(log_string);
 			log_string = NULL;
 		}
+	}
 	else
 		log_string = buffer;
 #endif

storage/pbxt/src/xaction_xt.cc

@@ -1558,6 +1558,8 @@ xtPublic int xt_xn_status(XTOpenTablePtr ot, xtXactID xn_id, xtRecordID XT_UNUSE
 		 * Because we are only here because the record was valid but not
 		 * clean (you can confirm this by looking at the code that
 		 * calls this function).
+		 *
+		 * See {RETRY-READ}
 		 */
 		return XT_XN_REREAD;
 	}
@@ -1743,7 +1745,7 @@ xtPublic xtWord8 xt_xn_bytes_to_sweep(XTDatabaseHPtr db, XTThreadPtr thread)
 			}
 			else {
 				xn_log_id = x_log_id;
-				x_log_offset = x_log_offset;
+				xn_log_offset = x_log_offset;
 			}
 		}
 		xn_id++;

storage/pbxt/src/xt_defs.h

@@ -397,6 +397,24 @@ typedef struct XTPathStr {
  */
 #define XT_XLOG_FLUSH_FREQ				1000
 
+/*
+ * Define here if you want to check (and correct) the table free list
+ * counts. The free list counts are not durable, because they are not
+ * written to the log.
+ *
+ * The row free count is most critical because it can be used to
+ * estimate the the of rows in the record.
+ */
+#define XT_CHECK_ROW_FREE_COUNT
+#ifdef DEBUG
+#define XT_CHECK_RECORD_FREE_COUNT
+#endif
+#define XT_CORRECT_TABLE_FREE_COUNT 
+
+#if defined(XT_CHECK_ROW_FREE_COUNT) && defined(XT_CORRECT_TABLE_FREE_COUNT)
+#define XT_ROW_COUNT_CORRECTED
+#endif
+
 /* ----------------------------------------------------------------------
  * GLOBAL CONSTANTS
  */
@@ -873,7 +891,11 @@ extern "C" void session_mark_transaction_to_rollback(Session *session, bool all)
 #define MX_ULONGLONG_T						ulonglong
 #define MX_LONGLONG_T						longlong
 #define MX_CHARSET_INFO						CHARSET_INFO
+#if defined(MARIADB_BASE_VERSION) && MYSQL_VERSION_ID > 50200
+#define MX_CONST_CHARSET_INFO				const struct charset_info_st
+#else
 #define MX_CONST_CHARSET_INFO				struct charset_info_st
+#endif			
 #define MX_CONST							
 #define MX_BITMAP							MY_BITMAP
 #define MX_BIT_SIZE()						n_bits