branches/zip: Merge r5341:5497 from branches/5.1, skipping:

c5419 because it is merge from branches/zip into branches/5.1
c5466 because the source code has been adjusted to match the MySQL
  behavior and the innodb-autoinc test does not fail in branches/zip,
  if c5466 is merged, then innodb-autoinc starts failing, Sunny suggested
  not to merge c5466.
and resolving conflicts in c5410, c5440, c5488:

  ------------------------------------------------------------------------
  r5410 | marko | 2009-06-24 22:26:34 +0300 (Wed, 24 Jun 2009) | 2 lines
  Changed paths:
     M /branches/5.1/include/trx0sys.ic
     M /branches/5.1/trx/trx0purge.c
     M /branches/5.1/trx/trx0sys.c
     M /branches/5.1/trx/trx0undo.c
  
  branches/5.1: Add missing #include "mtr0log.h" to avoid warnings
  when compiling with -DUNIV_MUST_NOT_INLINE.
  ------------------------------------------------------------------------
  r5419 | marko | 2009-06-25 16:11:57 +0300 (Thu, 25 Jun 2009) | 18 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
     M /branches/5.1/mysql-test/innodb_bug42101-nonzero.result
     M /branches/5.1/mysql-test/innodb_bug42101-nonzero.test
     M /branches/5.1/mysql-test/innodb_bug42101.result
     M /branches/5.1/mysql-test/innodb_bug42101.test
  
  branches/5.1: Merge r5418 from branches/zip:
  
    ------------------------------------------------------------------------
    r5418 | marko | 2009-06-25 15:55:52 +0300 (Thu, 25 Jun 2009) | 5 lines
    Changed paths:
       M /branches/zip/ChangeLog
       M /branches/zip/handler/ha_innodb.cc
       M /branches/zip/mysql-test/innodb_bug42101-nonzero.result
       M /branches/zip/mysql-test/innodb_bug42101-nonzero.test
       M /branches/zip/mysql-test/innodb_bug42101.result
       M /branches/zip/mysql-test/innodb_bug42101.test
    
    branches/zip: Fix a race condition caused by
    SET GLOBAL innodb_commit_concurrency=DEFAULT. (Bug #45749)
    When innodb_commit_concurrency is initially set nonzero,
    DEFAULT would change it back to 0, triggering Bug #42101.
    rb://139 approved by Heikki Tuuri.
    ------------------------------------------------------------------------
  ------------------------------------------------------------------------
  r5440 | vasil | 2009-06-30 13:04:29 +0300 (Tue, 30 Jun 2009) | 8 lines
  Changed paths:
     M /branches/5.1/fil/fil0fil.c
  
  branches/5.1:
  
  Fix Bug#45814 URL reference in InnoDB server errors needs adjusting to match documentation
  
  by changing the URL from
  http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting.html to
  http://dev.mysql.com/doc/refman/5.1/en/innodb-troubleshooting-datadict.html
  
  ------------------------------------------------------------------------
  r5466 | vasil | 2009-07-02 10:46:45 +0300 (Thu, 02 Jul 2009) | 6 lines
  Changed paths:
     M /branches/5.1/mysql-test/innodb-autoinc.result
     M /branches/5.1/mysql-test/innodb-autoinc.test
  
  branches/5.1:
  
  Adjust the failing innodb-autoinc test to conform to the latest behavior
  of the MySQL code. The idea and the comment in innodb-autoinc.test come
  from Sunny.
  
  ------------------------------------------------------------------------
  r5488 | vasil | 2009-07-09 19:16:44 +0300 (Thu, 09 Jul 2009) | 13 lines
  Changed paths:
     M /branches/5.1/handler/ha_innodb.cc
     A /branches/5.1/mysql-test/innodb_bug21704.result
     A /branches/5.1/mysql-test/innodb_bug21704.test
  
  branches/5.1:
  
  Fix Bug#21704 Renaming column does not update FK definition
  
  by checking whether a column that participates in a FK definition is being
  renamed and denying the ALTER in this case.
  
  The patch was originally developed by Davi Arnaut <Davi.Arnaut@Sun.COM>:
  http://lists.mysql.com/commits/77714
  and was later adjusted to conform to InnoDB coding style by me (Vasil),
  I also added some more comments and moved the bug specific mysql-test to
  a separate file to make it more manageable and flexible.
  
  ------------------------------------------------------------------------

fil/fil0fil.c

@@ -2954,7 +2954,7 @@ fil_open_single_table_tablespace(
 		      " a temporary table #sql...,\n"
 		      "InnoDB: and MySQL removed the .ibd file for this.\n"
 		      "InnoDB: Please refer to\n"
-		      "InnoDB: " REFMAN "innodb-troubleshooting.html\n"
+		      "InnoDB: " REFMAN "innodb-troubleshooting-datadict.html\n"
 		      "InnoDB: for how to resolve the issue.\n", stderr);
 
 		mem_free(filepath);
@@ -2996,7 +2996,7 @@ fil_open_single_table_tablespace(
 			"InnoDB: commands DISCARD TABLESPACE and"
 			" IMPORT TABLESPACE?\n"
 			"InnoDB: Please refer to\n"
-			"InnoDB: " REFMAN "innodb-troubleshooting.html\n"
+			"InnoDB: " REFMAN "innodb-troubleshooting-datadict.html\n"
 			"InnoDB: for how to resolve the issue.\n",
 			(ulong) space_id, (ulong) space_flags,
 			(ulong) id, (ulong) flags);
@@ -3677,7 +3677,7 @@ fil_space_for_table_exists_in_mem(
 		}
 error_exit:
 		fputs("InnoDB: Please refer to\n"
-		      "InnoDB: " REFMAN "innodb-troubleshooting.html\n"
+		      "InnoDB: " REFMAN "innodb-troubleshooting-datadict.html\n"
 		      "InnoDB: for how to resolve the issue.\n", stderr);
 
 		mem_free(path);

handler/ha_innodb.cc

@@ -9184,6 +9184,97 @@ innobase_set_cursor_view(
 }
 
 
+/***********************************************************************
+Check whether any of the given columns is being renamed in the table. */
+static
+bool
+column_is_being_renamed(
+/*====================*/
+					/* out: true if any of col_names is
+					being renamed in table */
+	TABLE*		table,		/* in: MySQL table */
+	uint		n_cols,		/* in: number of columns */
+	const char**	col_names)	/* in: names of the columns */
+{
+	uint		j;
+	uint		k;
+	Field*		field;
+	const char*	col_name;
+
+	for (j = 0; j < n_cols; j++) {
+		col_name = col_names[j];
+		for (k = 0; k < table->s->fields; k++) {
+			field = table->field[k];
+			if ((field->flags & FIELD_IS_RENAMED)
+			    && innobase_strcasecmp(field->field_name,
+						   col_name) == 0) {
+				return(true);
+			}
+		}
+	}
+
+	return(false);
+}
+
+/***********************************************************************
+Check whether a column in table "table" is being renamed and if this column
+is part of a foreign key, either part of another table, referencing this
+table or part of this table, referencing another table. */
+static
+bool
+foreign_key_column_is_being_renamed(
+/*================================*/
+					/* out: true if a column that
+					participates in a foreign key definition
+					is being renamed */
+	row_prebuilt_t*	prebuilt,	/* in: InnoDB prebuilt struct */
+	TABLE*		table)		/* in: MySQL table */
+{
+	dict_foreign_t*	foreign;
+
+	/* check whether there are foreign keys at all */
+	if (UT_LIST_GET_LEN(prebuilt->table->foreign_list) == 0
+	    && UT_LIST_GET_LEN(prebuilt->table->referenced_list) == 0) {
+		/* no foreign keys involved with prebuilt->table */
+
+		return(false);
+	}
+
+	row_mysql_lock_data_dictionary(prebuilt->trx);
+
+	/* Check whether any column in the foreign key constraints which refer
+	to this table is being renamed. */
+	for (foreign = UT_LIST_GET_FIRST(prebuilt->table->referenced_list);
+	     foreign != NULL;
+	     foreign = UT_LIST_GET_NEXT(referenced_list, foreign)) {
+
+		if (column_is_being_renamed(table, foreign->n_fields,
+					    foreign->referenced_col_names)) {
+
+			row_mysql_unlock_data_dictionary(prebuilt->trx);
+			return(true);
+		}
+	}
+
+	/* Check whether any column in the foreign key constraints in the
+	table is being renamed. */
+	for (foreign = UT_LIST_GET_FIRST(prebuilt->table->foreign_list);
+	     foreign != NULL;
+	     foreign = UT_LIST_GET_NEXT(foreign_list, foreign)) {
+
+		if (column_is_being_renamed(table, foreign->n_fields,
+					    foreign->foreign_col_names)) {
+
+			row_mysql_unlock_data_dictionary(prebuilt->trx);
+			return(true);
+		}
+	}
+
+	row_mysql_unlock_data_dictionary(prebuilt->trx);
+
+	return(false);
+}
+
 UNIV_INTERN
 bool
 ha_innobase::check_if_incompatible_data(
@@ -9202,6 +9293,13 @@ ha_innobase::check_if_incompatible_data(
 		return(COMPATIBLE_DATA_NO);
 	}
 
+	/* Check if a column participating in a foreign key is being renamed.
+	There is no mechanism for updating InnoDB foreign key definitions. */
+	if (foreign_key_column_is_being_renamed(prebuilt, table)) {
+
+		return COMPATIBLE_DATA_NO;
+	}
+
 	/* Check that row format didn't change */
 	if ((info->used_fields & HA_CREATE_USED_ROW_FORMAT)
 	    && info->row_type != ROW_TYPE_DEFAULT

mysql-test/innodb_bug21704.result

@@ -0,0 +1,55 @@
+#
+# Bug#21704: Renaming column does not update FK definition.
+#
+
+# Test that it's not possible to rename columns participating in a
+# foreign key (either in the referencing or referenced table).
+
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+DROP TABLE IF EXISTS t3;
+CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ROW_FORMAT=COMPACT ENGINE=INNODB;
+CREATE TABLE t2 (a INT PRIMARY KEY, b INT,
+CONSTRAINT fk1 FOREIGN KEY (a) REFERENCES t1(a))
+ROW_FORMAT=COMPACT ENGINE=INNODB;
+CREATE TABLE t3 (a INT PRIMARY KEY, b INT, KEY(b), C INT,
+CONSTRAINT fk2 FOREIGN KEY (b) REFERENCES t3 (a))
+ROW_FORMAT=COMPACT ENGINE=INNODB;
+INSERT INTO t1 VALUES (1,1),(2,2),(3,3);
+INSERT INTO t2 VALUES (1,1),(2,2),(3,3);
+INSERT INTO t3 VALUES (1,1,1),(2,2,2),(3,3,3);
+
+# Test renaming the column in the referenced table.
+
+ALTER TABLE t1 CHANGE a c INT;
+ERROR HY000: Error on rename of '#sql-temporary' to './test/t1' (errno: 150)
+# Ensure that online column rename works.
+ALTER TABLE t1 CHANGE b c INT;
+affected rows: 0
+info: Records: 0  Duplicates: 0  Warnings: 0
+
+# Test renaming the column in the referencing table
+
+ALTER TABLE t2 CHANGE a c INT;
+ERROR HY000: Error on rename of '#sql-temporary' to './test/t2' (errno: 150)
+# Ensure that online column rename works.
+ALTER TABLE t2 CHANGE b c INT;
+affected rows: 0
+info: Records: 0  Duplicates: 0  Warnings: 0
+
+# Test with self-referential constraints
+
+ALTER TABLE t3 CHANGE a d INT;
+ERROR HY000: Error on rename of '#sql-temporary' to './test/t3' (errno: 150)
+ALTER TABLE t3 CHANGE b d INT;
+ERROR HY000: Error on rename of '#sql-temporary' to './test/t3' (errno: 150)
+# Ensure that online column rename works.
+ALTER TABLE t3 CHANGE c d INT;
+affected rows: 0
+info: Records: 0  Duplicates: 0  Warnings: 0
+
+# Cleanup.
+
+DROP TABLE t3;
+DROP TABLE t2;
+DROP TABLE t1;

mysql-test/innodb_bug21704.test

@@ -0,0 +1,96 @@
+-- source include/have_innodb.inc
+
+--echo #
+--echo # Bug#21704: Renaming column does not update FK definition.
+--echo #
+
+--echo
+--echo # Test that it's not possible to rename columns participating in a
+--echo # foreign key (either in the referencing or referenced table).
+--echo
+
+--disable_warnings
+DROP TABLE IF EXISTS t1;
+DROP TABLE IF EXISTS t2;
+DROP TABLE IF EXISTS t3;
+--enable_warnings
+
+CREATE TABLE t1 (a INT PRIMARY KEY, b INT) ROW_FORMAT=COMPACT ENGINE=INNODB;
+
+CREATE TABLE t2 (a INT PRIMARY KEY, b INT,
+                 CONSTRAINT fk1 FOREIGN KEY (a) REFERENCES t1(a))
+ROW_FORMAT=COMPACT ENGINE=INNODB;
+
+CREATE TABLE t3 (a INT PRIMARY KEY, b INT, KEY(b), C INT,
+  CONSTRAINT fk2 FOREIGN KEY (b) REFERENCES t3 (a))
+ROW_FORMAT=COMPACT ENGINE=INNODB;
+
+INSERT INTO t1 VALUES (1,1),(2,2),(3,3);
+INSERT INTO t2 VALUES (1,1),(2,2),(3,3);
+INSERT INTO t3 VALUES (1,1,1),(2,2,2),(3,3,3);
+
+--echo
+--echo # Test renaming the column in the referenced table.
+--echo
+
+# mysqltest first does replace_regex, then replace_result
+--replace_regex /'[^']*test\/#sql-[0-9a-f_]*'/'#sql-temporary'/
+# Embedded server doesn't chdir to data directory
+--replace_result $MYSQLTEST_VARDIR . mysqld.1/data/ ''
+--error ER_ERROR_ON_RENAME
+ALTER TABLE t1 CHANGE a c INT;
+
+--echo # Ensure that online column rename works.
+
+--enable_info
+ALTER TABLE t1 CHANGE b c INT;
+--disable_info
+
+--echo
+--echo # Test renaming the column in the referencing table
+--echo
+
+# mysqltest first does replace_regex, then replace_result
+--replace_regex /'[^']*test\/#sql-[0-9a-f_]*'/'#sql-temporary'/
+# Embedded server doesn't chdir to data directory
+--replace_result $MYSQLTEST_VARDIR . mysqld.1/data/ ''
+--error ER_ERROR_ON_RENAME
+ALTER TABLE t2 CHANGE a c INT;
+
+--echo # Ensure that online column rename works.
+
+--enable_info
+ALTER TABLE t2 CHANGE b c INT;
+--disable_info
+
+--echo
+--echo # Test with self-referential constraints
+--echo
+
+# mysqltest first does replace_regex, then replace_result
+--replace_regex /'[^']*test\/#sql-[0-9a-f_]*'/'#sql-temporary'/
+# Embedded server doesn't chdir to data directory
+--replace_result $MYSQLTEST_VARDIR . mysqld.1/data/ ''
+--error ER_ERROR_ON_RENAME
+ALTER TABLE t3 CHANGE a d INT;
+
+# mysqltest first does replace_regex, then replace_result
+--replace_regex /'[^']*test\/#sql-[0-9a-f_]*'/'#sql-temporary'/
+# Embedded server doesn't chdir to data directory
+--replace_result $MYSQLTEST_VARDIR . mysqld.1/data/ ''
+--error ER_ERROR_ON_RENAME
+ALTER TABLE t3 CHANGE b d INT;
+
+--echo # Ensure that online column rename works.
+
+--enable_info
+ALTER TABLE t3 CHANGE c d INT;
+--disable_info
+
+--echo
+--echo # Cleanup.
+--echo
+
+DROP TABLE t3;
+DROP TABLE t2;
+DROP TABLE t1;

trx/trx0sys.c

@@ -31,7 +31,7 @@ Created 3/26/1996 Heikki Tuuri
 
 #ifndef UNIV_HOTBACKUP
 #include "fsp0fsp.h"
-#include "mtr0mtr.h"
+#include "mtr0log.h"
 #include "mtr0log.h"
 #include "trx0trx.h"
 #include "trx0rseg.h"