Merge from mysql-5.1 to mysql-5.5.

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

@@ -126,12 +126,12 @@ CREATE TABLE t1(
 c TEXT NOT NULL, d TEXT NOT NULL,
 PRIMARY KEY (c(767),d(767)))
 ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=1 CHARSET=ASCII;
-ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+ERROR 42000: Row size too large (> 8126). Changing some columns to TEXT or BLOB may help. In current row format, BLOB prefix of 0 bytes is stored inline.
 CREATE TABLE t1(
 c TEXT NOT NULL, d TEXT NOT NULL,
 PRIMARY KEY (c(767),d(767)))
 ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=2 CHARSET=ASCII;
-ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+ERROR 42000: Row size too large (> 8126). Changing some columns to TEXT or BLOB may help. In current row format, BLOB prefix of 0 bytes is stored inline.
 CREATE TABLE t1(
 c TEXT NOT NULL, d TEXT NOT NULL,
 PRIMARY KEY (c(767),d(767)))
@@ -139,7 +139,7 @@ ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=4 CHARSET=ASCII;
 drop table t1;
 CREATE TABLE t1(c TEXT, PRIMARY KEY (c(440)))
 ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=1 CHARSET=ASCII;
-ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+ERROR 42000: Row size too large (> 8126). Changing some columns to TEXT or BLOB may help. In current row format, BLOB prefix of 0 bytes is stored inline.
 CREATE TABLE t1(c TEXT, PRIMARY KEY (c(438)))
 ENGINE=InnoDB ROW_FORMAT=COMPRESSED KEY_BLOCK_SIZE=1 CHARSET=ASCII;
 INSERT INTO t1 VALUES(REPEAT('A',512)),(REPEAT('B',512));

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

@@ -3085,7 +3085,7 @@ c21 CHAR(255), c22 CHAR(255), c23 CHAR(255), c24 CHAR(255),
 c25 CHAR(255), c26 CHAR(255), c27 CHAR(255), c28 CHAR(255),
 c29 CHAR(255), c30 CHAR(255), c31 CHAR(255), c32 CHAR(255)
 ) ENGINE = InnoDB;
-ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+ERROR 42000: Row size too large (> 8126). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
 DROP TABLE IF EXISTS t1;
 Warnings:
 Note	1051	Unknown table 't1'

mysql-test/suite/innodb/r/innodb_bug53591.result

@@ -8,7 +8,7 @@ ERROR HY000: Too big row
 SHOW WARNINGS;
 Level	Code	Message
 Error	139	Too big row
-Error	1118	Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+Error	1118	Row size too large (> 8126). Changing some columns to TEXT or BLOB may help. In current row format, BLOB prefix of 0 bytes is stored inline.
 Error	1030	Got error 139 from storage engine
 DROP TABLE bug53591;
 SET GLOBAL innodb_file_format=Antelope;

mysql-test/suite/innodb/r/innodb_misc1.result

@@ -779,7 +779,7 @@ c21 CHAR(255), c22 CHAR(255), c23 CHAR(255), c24 CHAR(255),
 c25 CHAR(255), c26 CHAR(255), c27 CHAR(255), c28 CHAR(255),
 c29 CHAR(255), c30 CHAR(255), c31 CHAR(255), c32 CHAR(255)
 ) ENGINE = InnoDB;
-ERROR 42000: Row size too large. The maximum row size for the used table type, not counting BLOBs, is 8126. You have to change some columns to TEXT or BLOBs
+ERROR 42000: Row size too large (> 8126). Changing some columns to TEXT or BLOB or using ROW_FORMAT=DYNAMIC or ROW_FORMAT=COMPRESSED may help. In current row format, BLOB prefix of 768 bytes is stored inline.
 SET innodb_strict_mode=OFF;
 DROP TABLE IF EXISTS t1;
 Warnings:

storage/innobase/handler/ha_innodb.cc

@@ -1008,11 +1008,23 @@ convert_error_code_to_mysql(
 	case DB_TABLE_NOT_FOUND:
 		return(HA_ERR_NO_SUCH_TABLE);
 
-	case DB_TOO_BIG_RECORD:
-		my_error(ER_TOO_BIG_ROWSIZE, MYF(0),
-			 page_get_free_space_of_empty(flags
-						      & DICT_TF_COMPACT) / 2);
+	case DB_TOO_BIG_RECORD: {
+		/* If prefix is true then a 768-byte prefix is stored
+		locally for BLOB fields. Refer to dict_table_get_format() */
+		bool prefix = ((flags & DICT_TF_FORMAT_MASK)
+		 	       >> DICT_TF_FORMAT_SHIFT) < UNIV_FORMAT_B;
+		my_printf_error(ER_TOO_BIG_ROWSIZE,
+			"Row size too large (> %lu). Changing some columns "
+			"to TEXT or BLOB %smay help. In current row "
+			"format, BLOB prefix of %d bytes is stored inline.",
+			MYF(0),
+			page_get_free_space_of_empty(flags &
+				DICT_TF_COMPACT) / 2,
+			prefix ? "or using ROW_FORMAT=DYNAMIC "
+			"or ROW_FORMAT=COMPRESSED ": "",
+			prefix ? DICT_MAX_FIXED_COL_LEN : 0);
 		return(HA_ERR_TO_BIG_ROW);
+	}
 
 	case DB_TOO_BIG_INDEX_COL:
 		my_error(ER_INDEX_COLUMN_TOO_LONG, MYF(0),

storage/innobase/include/univ.i

@@ -295,6 +295,24 @@ management to ensure correct alignment for doubles etc. */
 			========================
 */
 
+/** There are currently two InnoDB file formats which are used to group
+features with similar restrictions and dependencies. Using an enum allows
+switch statements to give a compiler warning when a new one is introduced. */
+enum innodb_file_formats_enum {
+	/** Antelope File Format: InnoDB/MySQL up to 5.1.
+	This format includes REDUNDANT and COMPACT row formats */
+	UNIV_FORMAT_A		= 0,
+
+	/** Barracuda File Format: Introduced in InnoDB plugin for 5.1:
+	This format includes COMPRESSED and DYNAMIC row formats.  It
+	includes the ability to create secondary indexes from data that
+	is not on the clustered index page and the ability to store more
+	data off the clustered index page. */
+	UNIV_FORMAT_B		= 1
+};
+
+typedef enum innodb_file_formats_enum innodb_file_formats_t;
+
 /* The 2-logarithm of UNIV_PAGE_SIZE: */
 #define UNIV_PAGE_SIZE_SHIFT	14
 /* The universal page size of the database */