From d29e7f747209f428458a97c128678a21abf2680d Mon Sep 17 00:00:00 2001
From: Michael Widenius <monty@mysql.com>
Date: Sat, 28 Jun 2008 15:45:15 +0300
Subject: Fix for Bug #37007 Maria: different checksum for MyISAM table
 depending on CHECKSUM=0|1 This also adds a check that MyISAM tables with
 incompatible checksums are detected by CHECK TABLE ... [FOR UPGRADE] and thus
 also by mysql_upgrade. The tables that are incomatible are MyISAM tables with
 ROW_FORMAT=fixed and has VARCHAR fields and have CHECKSUM enabled. Before
 these tables gave different checksum if you used CHECK TABLE with or without
 EXTENDED

mysql-test/r/old-mode.result:
  Now we get same results with and without EXTENDED
mysql-test/r/row-checksum-old.result:
  Initial results
mysql-test/r/row-checksum.result:
  Initial results
mysql-test/t/old-mode.test:
  Added test with QUICK to show that the live checksum is not used when running with --old
mysql-test/t/row-checksum-old-master.opt:
  Start mysqld with --old mode to enable old checksum code
mysql-test/t/row-checksum-old.test:
  Run row-checksum test under mysqld --old
mysql-test/t/row-checksum.test:
  Verify that checksum are calculated the same way with and without EXTENDED
  We run this with several storage engines to ensure results are the same over storage engines
sql/ha_partition.cc:
  Use new HA_HAS_xxx_CHECKSUM flags
sql/handler.cc:
  Use new HA_HAS_xxx_CHECKSUM flags
sql/handler.h:
  Split HA_HAS_CHECKSUM into HA_HAS_NEW_CHECKSUM and HA_HAS_OLD_CHECKSUM flags.
  This is a safe API change as only MyISAM and Maria should use these handler flags.
sql/sql_show.cc:
  Use new HA_HAS_xxx_CHECKSUM flags
sql/sql_table.cc:
  Use file->checksum() for live checksums if the life checksum method corresponds to the mysqld --old flag
storage/maria/ha_maria.cc:
  Use new HA_HAS_xxx_CHECKSUM flags
storage/myisam/ha_myisam.cc:
  Set HA_HAS_OLD_CHECKSUM and/or HA_HAS_NEW_CHECKSUM flags depending on if this is a new myisam or old myisam file
  Add method check_for_upgrade() to detect if the table is of old version with a checksum that is incompatible with CHECK TABLE ... EXTENDED
storage/myisam/ha_myisam.h:
  Added check_for_upgrade()
storage/myisam/mi_open.c:
  Removed not neede cast
  Initialize share->has_null_fields and share->has_varchar_fields variables
storage/myisam/myisamdef.h:
  Added share->has_null_fields and share->has_varchar_fields
---
 mysql-test/t/row-checksum.test | 62 ++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 mysql-test/t/row-checksum.test

(limited to 'mysql-test/t/row-checksum.test')

diff --git a/mysql-test/t/row-checksum.test b/mysql-test/t/row-checksum.test
new file mode 100644
index 00000000000..920a2384aa8
--- /dev/null
+++ b/mysql-test/t/row-checksum.test
@@ -0,0 +1,62 @@
+#
+# Test checksum
+#
+
+-- source include/have_innodb.inc
+-- source include/have_maria.inc
+
+--disable_warnings
+drop table if exists t1;
+--enable_warnings
+
+create table t1 (a int null, v varchar(100)) engine=myisam checksum=0;
+insert into t1 values(null, null), (1, "hello");
+checksum table t1;
+checksum table t1 quick;
+checksum table t1 extended;
+drop table if exists t1;
+create table t1 (a int null, v varchar(100)) engine=myisam checksum=1;
+insert into t1 values(null, null), (1, "hello");
+checksum table t1;
+checksum table t1 quick;
+checksum table t1 extended;
+drop table if exists t1;
+
+create table t1 (a int null, v varchar(100)) engine=innodb checksum=0;
+insert into t1 values(null, null), (1, "hello");
+checksum table t1;
+checksum table t1 quick;
+checksum table t1 extended;
+drop table t1;
+
+create table t1 (a int null, v varchar(100)) engine=maria checksum=0;
+insert into t1 values(null, null), (1, "hello");
+checksum table t1;
+checksum table t1 quick;
+checksum table t1 extended;
+drop table t1;
+create table t1 (a int null, v varchar(100)) engine=maria checksum=1;
+insert into t1 values(null, null), (1, "hello");
+checksum table t1;
+checksum table t1 quick;
+checksum table t1 extended;
+drop table t1;
+
+
+#
+# These checksums will be different prefixes fixed sizes rows with one extra
+# flag byte
+#
+create table t1 (a int null, v varchar(100)) engine=myisam checksum=1 row_format=fixed;
+insert into t1 values(null, null), (1, "hello");
+checksum table t1;
+checksum table t1 quick;
+checksum table t1 extended;
+drop table if exists t1;
+
+create table t1 (a int null, v varchar(100)) engine=innodb checksum=0 row_format=fixed;
+insert into t1 values(null, null), (1, "hello");
+checksum table t1;
+checksum table t1 quick;
+checksum table t1 extended;
+drop table t1;
-- 
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