bzr commit into mysql-trunk-innodb branch (kevin.lewis:3372)

[kevin.lewis]

#At file:///Users/kevinlewis/Work/Mysql/55222.push/mysql-trunk-innodb/ based on revid:sunny.bains@stripped

 3372 kevin.lewis@stripped	2010-12-09 [merge]
      merge from mysql-5.5-innodb to mysql-trunk-innodb

    modified:
      storage/innobase/dict/dict0load.c
=== modified file 'storage/innobase/dict/dict0load.c'
--- a/storage/innobase/dict/dict0load.c	revid:sunny.bains@stripped
+++ b/storage/innobase/dict/dict0load.c	revid:kevin.lewis@stripped
@@ -442,7 +442,7 @@ dict_process_sys_fields_rec(
 /********************************************************************//**
 This function parses a SYS_FOREIGN record and populate a dict_foreign_t
 structure with the information from the record. For detail information
-about SYS_FOREIGN fields, please refer to dict_load_foreign() function
+about SYS_FOREIGN fields, please refer to dict_load_foreign() function.
 @return error message, or NULL on success */
 UNIV_INTERN
 const char*
@@ -470,6 +470,11 @@ dict_process_sys_foreign_rec(
 err_len:
 		return("incorrect column length in SYS_FOREIGN");
 	}
+	
+	/* This recieves a dict_foreign_t* that points to a stack variable.
+	So mem_heap_free(foreign->heap) is not used as elsewhere.
+	Since the heap used here is freed elsewhere, foreign->heap
+	is not assigned. */
 	foreign->id = mem_heap_strdupl(heap, (const char*) field, len);
 
 	rec_get_nth_field_offs_old(rec, 1/*DB_TRX_ID*/, &len);
@@ -481,22 +486,22 @@ err_len:
 		goto err_len;
 	}
 
+	/* The _lookup versions of the referenced and foreign table names
+	 are not assigned since they are not used in this dict_foreign_t */
+
 	field = rec_get_nth_field_old(rec, 3/*FOR_NAME*/, &len);
 	if (UNIV_UNLIKELY(len < 1 || len == UNIV_SQL_NULL)) {
 		goto err_len;
 	}
 	foreign->foreign_table_name = mem_heap_strdupl(
 		heap, (const char*) field, len);
-	dict_mem_foreign_table_name_lookup_set(foreign, TRUE);
 
 	field = rec_get_nth_field_old(rec, 4/*REF_NAME*/, &len);
 	if (UNIV_UNLIKELY(len < 1 || len == UNIV_SQL_NULL)) {
 		goto err_len;
 	}
-
 	foreign->referenced_table_name = mem_heap_strdupl(
 		heap, (const char*) field, len);
-	dict_mem_referenced_table_name_lookup_set(foreign, TRUE);
 
 	field = rec_get_nth_field_old(rec, 5/*N_COLS*/, &len);
 	if (UNIV_UNLIKELY(len != 4)) {

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