Bug #11766634 59783: InnoDB data grows unexpectedly when inserting,

truncating, inserting the same set of rows. When a table is 
re-created with the same set of rows, the data file size must
not grow.  

rb:968
Approved by Marko. 

mysql-test/suite/innodb/r/innodb_bug11766634.result

+create table t1 (f1 char(255)) engine innodb;
+ibdata1 size: 27262976 bytes
+drop table t1;
+create table t1 (f1 char(255)) engine innodb;
+ibdata1 size: 27262976 bytes
+drop table t1;

mysql-test/suite/innodb/t/innodb_bug11766634.test

+# Bug 11766634 59783: InnoDB data grows unexpectedly when inserting,
+# truncating, inserting the same set of rows.
+#
+# Scenario:
+# create table t1.  Insert $recs records.  check size of ibdata1.
+# drop table t1.  create table t1.  Insert the same set of $recs
+# records.  The size of ibdata1 must not increase.
+#
+
+-- source include/not_embedded.inc
+-- source include/have_innodb.inc
+
+create table t1 (f1 char(255)) engine innodb;
+let $MYSQLD_DATADIR=`select @@datadir`;
+let IBDATA1=$MYSQLD_DATADIR/ibdata1;
+
+let $recs = 36262;
+
+--disable_query_log
+let $c = $recs;
+while ($c)
+{
+  insert into t1 values ('Hello World');
+  dec $c;
+}
+--enable_query_log
+
+perl;
+my $filesize = -s $ENV{'IBDATA1'};
+print "ibdata1 size: $filesize bytes\n";
+EOF
+
+drop table t1;
+create table t1 (f1 char(255)) engine innodb;
+
+--disable_query_log
+let $c = $recs;
+while ($c)
+{
+  insert into t1 values ('Hello World');
+  dec $c;
+}
+--enable_query_log
+
+perl;
+my $filesize = -s $ENV{'IBDATA1'};
+print "ibdata1 size: $filesize bytes\n";
+EOF
+
+drop table t1;
+

mysql-test/suite/innodb_plugin/r/innodb_bug11766634.result

+create table t1 (f1 char(255)) engine innodb;
+ibdata1 size: 27262976 bytes
+drop table t1;
+create table t1 (f1 char(255)) engine innodb;
+ibdata1 size: 27262976 bytes
+drop table t1;

mysql-test/suite/innodb_plugin/t/innodb_bug11766634.test

+# Bug 11766634 59783: InnoDB data grows unexpectedly when inserting,
+# truncating, inserting the same set of rows.
+#
+# Scenario:
+# create table t1.  Insert $recs records.  check size of ibdata1.
+# drop table t1.  create table t1.  Insert the same set of $recs
+# records.  The size of ibdata1 must not increase.
+#
+
+-- source include/not_embedded.inc
+-- source include/have_innodb_plugin.inc
+
+create table t1 (f1 char(255)) engine innodb;
+let $MYSQLD_DATADIR=`select @@datadir`;
+let IBDATA1=$MYSQLD_DATADIR/ibdata1;
+
+let $recs = 36262;
+
+--disable_query_log
+let $c = $recs;
+while ($c)
+{
+  insert into t1 values ('Hello World');
+  dec $c;
+}
+--enable_query_log
+
+perl;
+my $filesize = -s $ENV{'IBDATA1'};
+print "ibdata1 size: $filesize bytes\n";
+EOF
+
+drop table t1;
+create table t1 (f1 char(255)) engine innodb;
+
+--disable_query_log
+let $c = $recs;
+while ($c)
+{
+  insert into t1 values ('Hello World');
+  dec $c;
+}
+--enable_query_log
+
+perl;
+my $filesize = -s $ENV{'IBDATA1'};
+print "ibdata1 size: $filesize bytes\n";
+EOF
+
+drop table t1;
+

storage/innobase/fsp/fsp0fsp.c

@@ -245,13 +245,13 @@ fseg_n_reserved_pages_low(
 /************************************************************************
 Marks a page used. The page must reside within the extents of the given
 segment. */
-static
+static __attribute__((nonnull))
 void
 fseg_mark_page_used(
 /*================*/
 	fseg_inode_t*	seg_inode,/* in: segment inode */
-	ulint		space,	/* in: space id */
 	ulint		page,	/* in: page offset */
+	xdes_t*		descr,	/* in: extent descriptor */
 	mtr_t*		mtr);	/* in: mtr */
 /**************************************************************************
 Returns the first extent descriptor for a segment. We think of the extent
@@ -635,10 +635,8 @@ xdes_calc_descriptor_index(
 
 /************************************************************************
 Gets pointer to a the extent descriptor of a page. The page where the extent
-descriptor resides is x-locked. If the page offset is equal to the free limit
-of the space, adds new extents from above the free limit to the space free
-list, if not free limit == space size. This adding is necessary to make the
-descriptor defined, as they are uninitialized above the free limit. */
+descriptor resides is x-locked. This function no longer extends the data
+file. */
 UNIV_INLINE
 xdes_t*
 xdes_get_descriptor_with_space_hdr(
@@ -666,19 +664,10 @@ xdes_get_descriptor_with_space_hdr(
 	limit = mtr_read_ulint(sp_header + FSP_FREE_LIMIT, MLOG_4BYTES, mtr);
 	size  = mtr_read_ulint(sp_header + FSP_SIZE, MLOG_4BYTES, mtr);
 
-	/* If offset is >= size or > limit, return NULL */
-
-	if ((offset >= size) || (offset > limit)) {
-
+	if ((offset >= size) || (offset >= limit)) {
 		return(NULL);
 	}
 
-	/* If offset is == limit, fill free list of the space. */
-
-	if (offset == limit) {
-		fsp_fill_free_list(FALSE, space, sp_header, mtr);
-	}
-
 	descr_page_no = xdes_calc_descriptor_page(offset);
 
 	if (descr_page_no == 0) {
@@ -2552,7 +2541,7 @@ fseg_alloc_free_page_low(
 		ut_ad(xdes_get_bit(ret_descr, XDES_FREE_BIT,
 				   ret_page % FSP_EXTENT_SIZE, mtr) == TRUE);
 
-		fseg_mark_page_used(seg_inode, space, ret_page, mtr);
+		fseg_mark_page_used(seg_inode, ret_page, ret_descr, mtr);
 	}
 
 	return(ret_page);
@@ -2946,22 +2935,17 @@ fsp_get_available_space_in_free_extents(
 /************************************************************************
 Marks a page used. The page must reside within the extents of the given
 segment. */
-static
+static __attribute__((nonnull))
 void
 fseg_mark_page_used(
 /*================*/
 	fseg_inode_t*	seg_inode,/* in: segment inode */
-	ulint		space,	/* in: space id */
 	ulint		page,	/* in: page offset */
+	xdes_t*		descr,  /* in: extent descriptor */
 	mtr_t*		mtr)	/* in: mtr */
 {
-	xdes_t*	descr;
 	ulint	not_full_n_used;
 
-	ut_ad(seg_inode && mtr);
-
-	descr = xdes_get_descriptor(space, page, mtr);
-
 	ut_ad(mtr_read_ulint(seg_inode + FSEG_ID, MLOG_4BYTES, mtr)
 	      == mtr_read_ulint(descr + XDES_ID, MLOG_4BYTES, mtr));
 

storage/innodb_plugin/fsp/fsp0fsp.c

@@ -273,15 +273,13 @@ fseg_n_reserved_pages_low(
 /********************************************************************//**
 Marks a page used. The page must reside within the extents of the given
 segment. */
-static
+static __attribute__((nonnull))
 void
 fseg_mark_page_used(
 /*================*/
 	fseg_inode_t*	seg_inode,/*!< in: segment inode */
-	ulint		space,	/*!< in: space id */
-	ulint		zip_size,/*!< in: compressed page size in bytes
-				or 0 for uncompressed pages */
 	ulint		page,	/*!< in: page offset */
+	xdes_t*		descr, /* extent descriptor */
 	mtr_t*		mtr);	/*!< in: mtr */
 /**********************************************************************//**
 Returns the first extent descriptor for a segment. We think of the extent
@@ -705,12 +703,10 @@ xdes_calc_descriptor_index(
 
 /********************************************************************//**
 Gets pointer to a the extent descriptor of a page. The page where the extent
-descriptor resides is x-locked. If the page offset is equal to the free limit
-of the space, adds new extents from above the free limit to the space free
-list, if not free limit == space size. This adding is necessary to make the
-descriptor defined, as they are uninitialized above the free limit.
+descriptor resides is x-locked. This function no longer extends the data
+file.
 @return pointer to the extent descriptor, NULL if the page does not
-exist in the space or if the offset exceeds the free limit */
+exist in the space or if the offset is >= the free limit */
 UNIV_INLINE __attribute__((nonnull, warn_unused_result))
 xdes_t*
 xdes_get_descriptor_with_space_hdr(
@@ -740,19 +736,10 @@ xdes_get_descriptor_with_space_hdr(
 	zip_size = dict_table_flags_to_zip_size(
 		mach_read_from_4(sp_header + FSP_SPACE_FLAGS));
 
-	/* If offset is >= size or > limit, return NULL */
-
-	if ((offset >= size) || (offset > limit)) {
-
+	if ((offset >= size) || (offset >= limit)) {
 		return(NULL);
 	}
 
-	/* If offset is == limit, fill free list of the space. */
-
-	if (offset == limit) {
-		fsp_fill_free_list(FALSE, space, sp_header, mtr);
-	}
-
 	descr_page_no = xdes_calc_descriptor_page(zip_size, offset);
 
 	if (descr_page_no == 0) {
@@ -2877,7 +2864,7 @@ got_hinted_page:
 		ut_ad(xdes_get_bit(ret_descr, XDES_FREE_BIT,
 				   ret_page % FSP_EXTENT_SIZE, mtr) == TRUE);
 
-		fseg_mark_page_used(seg_inode, space, zip_size, ret_page, mtr);
+		fseg_mark_page_used(seg_inode, ret_page, ret_descr, mtr);
 	}
 
 	return(fsp_page_create(
@@ -3283,27 +3270,21 @@ fsp_get_available_space_in_free_extents(
 /********************************************************************//**
 Marks a page used. The page must reside within the extents of the given
 segment. */
-static
+static __attribute__((nonnull))
 void
 fseg_mark_page_used(
 /*================*/
 	fseg_inode_t*	seg_inode,/*!< in: segment inode */
-	ulint		space,	/*!< in: space id */
-	ulint		zip_size,/*!< in: compressed page size in bytes
-				or 0 for uncompressed pages */
 	ulint		page,	/*!< in: page offset */
+	xdes_t*		descr, /* extent descriptor */
 	mtr_t*		mtr)	/*!< in: mtr */
 {
-	xdes_t*	descr;
 	ulint	not_full_n_used;
 
-	ut_ad(seg_inode && mtr);
 	ut_ad(!((page_offset(seg_inode) - FSEG_ARR_OFFSET) % FSEG_INODE_SIZE));
 	ut_ad(mach_read_from_4(seg_inode + FSEG_MAGIC_N)
 	      == FSEG_MAGIC_N_VALUE);
 
-	descr = xdes_get_descriptor(space, zip_size, page, mtr);
-
 	ut_ad(mtr_read_ulint(seg_inode + FSEG_ID, MLOG_4BYTES, mtr)
 	      == mtr_read_ulint(descr + XDES_ID, MLOG_4BYTES, mtr));