Fix Bug #53592 in plugin code, "crash replacing duplicates into table

after fast alter table added unique key". Look up MySQL index number should
go through index translation table.

rb://347, approved by Marko

mysql-test/suite/innodb_plugin/t/innodb_bug53592.test

@@ -0,0 +1,59 @@
+# Testcase for Bug #53592 - "crash replacing duplicates into
+# table after fast alter table added unique key". The fix is to make
+# sure index number lookup should go through "index translation table".
+
+--source include/have_innodb.inc
+
+# Use FIC for index creation
+set old_alter_table=0;
+
+create table bug53592(a int) engine=innodb row_format=compact;
+
+alter table bug53592 add column b text charset utf8;
+
+alter table bug53592 add column c blob not null;
+
+# Create a non-unique nonclustered index
+create index bug53592_b on bug53592(b(81));
+
+# Create a unique index, this unique index should have smaller
+# index number than bug53592_b, since unique index ranks higher
+# than regular index does
+create unique index bug53592_c on bug53592(c(1));
+
+# This will trigger a dup key error and will require fetching
+# the index number through a index structure for the error reporting.
+# To get the correct index number, the code should go through index
+# translation table. Otherwise, it will get the wrong index
+# number and later trigger a server crash.
+replace into bug53592 values (),();
+
+check table bug53592;
+
+drop table bug53592;
+
+# Running the same set of test when "old_alter_table" is turned on
+set old_alter_table=1;
+
+create table bug53592(a int) engine=innodb row_format=compact;
+
+alter table bug53592 add column b text charset utf8;
+
+alter table bug53592 add column c blob not null;
+
+# Create a non-unique nonclustered index
+create index bug53592_b on bug53592(b(81));
+
+# Create a unique index
+create unique index bug53592_c on bug53592(c(1));
+
+# This will trigger a dup key error and will require fetching
+# the index number through a index structure for the error reporting.
+# To get the correct index number, the code should go through index
+# translation table. Otherwise, it will get the wrong index
+# number and later trigger a server crash.
+replace into bug53592 values (),();
+
+check table bug53592;
+
+drop table bug53592;