Merge some 5.0 innodb changes

innobase/buf/buf0buf.c

@@ -2260,6 +2260,7 @@ buf_print(void)
 	ut_a(buf_validate());
 }	
 
+#ifdef UNIV_DEBUG
 /*************************************************************************
 Returns the number of latched pages in the buffer pool. */
 
@@ -2290,6 +2291,7 @@ buf_get_latched_pages_number(void)
         mutex_exit(&(buf_pool->mutex));
         return fixed_pages_number;
 }
+#endif /* UNIV_DEBUG */
 
 /*************************************************************************
 Returns the number of pending buf pool ios. */

innobase/dict/dict0dict.c

@@ -3554,7 +3554,7 @@ dict_foreign_parse_drop_constraints(
 
 	ptr = dict_accept(ptr, "FOREIGN", &success);
 	
-	if (!success) {
+	if (!success || !ib_isspace(*ptr)) {
 
 	        goto loop;
 	}

innobase/include/buf0buf.h

@@ -495,7 +495,15 @@ Prints info of the buffer pool data structure. */
 void
 buf_print(void);
 /*============*/
+
+/*************************************************************************
+Returns the number of latched pages in the buffer pool. */
+
+ulint
+buf_get_latched_pages_number(void);
+/*==============================*/
 #endif /* UNIV_DEBUG */
+
 /************************************************************************
 Prints a page to stderr. */
 
@@ -503,12 +511,7 @@ void
 buf_page_print(
 /*===========*/
 	byte*	read_buf);	/* in: a database page */
-/*************************************************************************
-Returns the number of latched pages in the buffer pool. */
 
-ulint
-buf_get_latched_pages_number(void);
-/*==============================*/
 /*************************************************************************
 Returns the number of pending buf pool ios. */
 

innobase/include/srv0srv.h

@@ -531,7 +531,9 @@ struct export_var_struct{
         ulint innodb_buffer_pool_pages_dirty;
         ulint innodb_buffer_pool_pages_misc;
         ulint innodb_buffer_pool_pages_free;
+#ifdef UNIV_DEBUG
         ulint innodb_buffer_pool_pages_latched;
+#endif /* UNIV_DEBUG */
         ulint innodb_buffer_pool_read_requests;
         ulint innodb_buffer_pool_reads;
         ulint innodb_buffer_pool_wait_free;

innobase/include/trx0undo.h

@@ -237,6 +237,7 @@ trx_undo_set_state_at_finish(
 /*=========================*/
 				/* out: undo log segment header page,
 				x-latched */
+	trx_rseg_t*	rseg,	/* in: rollback segment memory object */
 	trx_t*		trx,	/* in: transaction */
 	trx_undo_t*	undo,	/* in: undo log memory copy */
 	mtr_t*		mtr);	/* in: mtr */

innobase/srv/srv0srv.c

@@ -1803,7 +1803,9 @@ srv_export_innodb_status(void)
         export_vars.innodb_buffer_pool_pages_data= UT_LIST_GET_LEN(buf_pool->LRU);
         export_vars.innodb_buffer_pool_pages_dirty= UT_LIST_GET_LEN(buf_pool->flush_list);
         export_vars.innodb_buffer_pool_pages_free= UT_LIST_GET_LEN(buf_pool->free);
+#ifdef UNIV_DEBUG
         export_vars.innodb_buffer_pool_pages_latched= buf_get_latched_pages_number();
+#endif /* UNIV_DEBUG */
         export_vars.innodb_buffer_pool_pages_total= buf_pool->curr_size;
         export_vars.innodb_buffer_pool_pages_misc= buf_pool->max_size -
           UT_LIST_GET_LEN(buf_pool->LRU) - UT_LIST_GET_LEN(buf_pool->free);

innobase/trx/trx0trx.c

@@ -761,8 +761,8 @@ trx_commit_off_kernel(
 		mutex_enter(&(rseg->mutex));
 			
 		if (trx->insert_undo != NULL) {
-			trx_undo_set_state_at_finish(trx, trx->insert_undo,
-									&mtr);
+			trx_undo_set_state_at_finish(
+				rseg, trx, trx->insert_undo, &mtr);
 		}
 
 		undo = trx->update_undo;
@@ -777,8 +777,8 @@ trx_commit_off_kernel(
 			because only a single OS thread is allowed to do the
 			transaction commit for this transaction. */
 					
-			update_hdr_page = trx_undo_set_state_at_finish(trx,
-								undo, &mtr);
+			update_hdr_page = trx_undo_set_state_at_finish(
+				rseg, trx, undo, &mtr);
 
 			/* We have to do the cleanup for the update log while
 			holding the rseg mutex because update log headers

innobase/trx/trx0undo.c

@@ -1724,6 +1724,7 @@ trx_undo_set_state_at_finish(
 /*=========================*/
 				/* out: undo log segment header page,
 				x-latched */
+	trx_rseg_t*	rseg,	/* in: rollback segment memory object */
 	trx_t*		trx __attribute__((unused)), /* in: transaction */
 	trx_undo_t*	undo,	/* in: undo log memory copy */
 	mtr_t*		mtr)	/* in: mtr */
@@ -1732,8 +1733,10 @@ trx_undo_set_state_at_finish(
 	trx_upagef_t*	page_hdr;
 	page_t*		undo_page;
 	ulint		state;
-	
-	ut_ad(trx && undo && mtr);
+
+	ut_ad(trx);
+	ut_ad(undo);
+	ut_ad(mtr);
 
 	if (undo->id >= TRX_RSEG_N_SLOTS) {
 		fprintf(stderr, "InnoDB: Error: undo->id is %lu\n",
@@ -1747,9 +1750,23 @@ trx_undo_set_state_at_finish(
 	seg_hdr = undo_page + TRX_UNDO_SEG_HDR;
 	page_hdr = undo_page + TRX_UNDO_PAGE_HDR;
 
-	if (undo->size == 1 && mach_read_from_2(page_hdr + TRX_UNDO_PAGE_FREE)
-						< TRX_UNDO_PAGE_REUSE_LIMIT) {
-		state = TRX_UNDO_CACHED;
+	if (undo->size == 1
+	    && mach_read_from_2(page_hdr + TRX_UNDO_PAGE_FREE)
+	       < TRX_UNDO_PAGE_REUSE_LIMIT) {
+
+		/* This is a heuristic to avoid the problem of all UNDO
+		slots ending up in one of the UNDO lists. Previously if
+		the server crashed with all the slots in one of the lists,
+		transactions that required the slots of a different type
+		would fail for lack of slots. */
+
+		if (UT_LIST_GET_LEN(rseg->update_undo_list) < 500
+		    && UT_LIST_GET_LEN(rseg->insert_undo_list) < 500) {
+
+			state = TRX_UNDO_CACHED;
+		} else {
+			state = TRX_UNDO_TO_FREE;
+		}
 
 	} else if (undo->type == TRX_UNDO_INSERT) {
 
@@ -1759,7 +1776,7 @@ trx_undo_set_state_at_finish(
 	}
 
 	undo->state = state;
-		   
+
 	mlog_write_ulint(seg_hdr + TRX_UNDO_STATE, state, MLOG_2BYTES, mtr);
 
 	return(undo_page);

mysql-test/r/innodb-autoinc-optimize.result

+drop table if exists t1;
+create table t1(a int not null auto_increment primary key) engine=innodb;
+insert into t1 set a = -1;
+optimize table t1;
+Table	Op	Msg_type	Msg_text
+test.t1	optimize	status	OK

mysql-test/r/innodb_bug35220.result

+SET storage_engine=InnoDB;

mysql-test/t/innodb-autoinc-optimize.test

+-- source include/have_innodb.inc
+# embedded server ignores 'delayed', so skip this
+-- source include/not_embedded.inc
+
+--disable_warnings
+drop table if exists t1;
+--enable_warnings
+
+#
+# Bug 34286
+#
+create table t1(a int not null auto_increment primary key) engine=innodb;
+insert into t1 set a = -1;
+# NOTE: The database needs to be shutdown and restarted (here) for
+# the test to work. It's included for reference only.
+optimize table t1;

mysql-test/t/innodb_bug35220.test

+#
+# Bug#35220 ALTER TABLE too picky on reserved word "foreign"
+# http://bugs.mysql.com/35220
+#
+
+-- source include/have_innodb.inc
+
+SET storage_engine=InnoDB;
+
+# we care only that the following SQL commands do not produce errors
+-- disable_query_log
+-- disable_result_log
+
+CREATE TABLE bug35220 (foreign_col INT, dummy_cant_delete_all_columns INT);
+ALTER TABLE bug35220 DROP foreign_col;
+DROP TABLE bug35220;

sql/ha_innodb.cc

@@ -244,8 +244,10 @@ struct show_var_st innodb_status_variables[]= {
   (char*) &export_vars.innodb_buffer_pool_pages_flushed,  SHOW_LONG},
   {"buffer_pool_pages_free",
   (char*) &export_vars.innodb_buffer_pool_pages_free,     SHOW_LONG},
+#ifdef UNIV_DEBUG
   {"buffer_pool_pages_latched",
   (char*) &export_vars.innodb_buffer_pool_pages_latched,  SHOW_LONG},
+#endif /* UNIV_DEBUG */
   {"buffer_pool_pages_misc",
   (char*) &export_vars.innodb_buffer_pool_pages_misc,     SHOW_LONG},
   {"buffer_pool_pages_total",
@@ -4250,7 +4252,7 @@ ha_innobase::rnd_pos(
 	int		error;
 	uint		keynr	= active_index;
 	DBUG_ENTER("rnd_pos");
-	DBUG_DUMP("key", (uchar *)pos, ref_length);
+	DBUG_DUMP("key", (uchar*) pos, ref_length);
 
 	statistic_increment(current_thd->status_var.ha_read_rnd_count,
 			    &LOCK_status);
@@ -6882,6 +6884,12 @@ ha_innobase::innobase_read_and_init_auto_inc(
 	from a table when no table has been locked in ::external_lock(). */
 	prebuilt->trx->n_mysql_tables_in_use++;
 
+	/* Since we will perform a MySQL SELECT query to determine the
+	auto-inc value, set prebuilt->sql_stat_start = TRUE so that it
+	is performed like any normal SELECT, regardless of the context
+	we come here. */
+        prebuilt->sql_stat_start = TRUE;
+
 	error = index_last(table->record[1]);
 
 	prebuilt->trx->n_mysql_tables_in_use--;