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MDEV-19867: fix mysqldump to by default not copy S3 tables

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There are two options when coping S3 tables with mysqldump
(there is startup option --copy_s3_tables, boolean, default no)
1) Ignore all tables with engine S3, as the data is already safe in S3 and any
computer where you restore the backup will automatically discover the S3 table.
2) Copy the table as a normal table with the following 2 changes:
- Change ENGINE=S3 to ENGINE=ARIA;
- After copy add to log 'ALTER TABLE table_name ENGINE=S3'
This commit is contained in:
Vlad Lesin
2019-05-28 11:02:16 +03:00
parent 878ad986fd
commit 5c5ea59bf8
4 changed files with 149 additions and 3 deletions
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60
mysql-test/suite/s3/mysqldump.result Normal file
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@@ -0,0 +1,60 @@
create table t1 (pk int primary key, a int);
insert into t1 values (1,1),(2,2),(3,3),(4,4);
alter table t1 engine=S3;
#####
# mysqldump with --copy-s3-tables=0 (by default)
###
#####
# mysqldump with --copy-s3-tables=0 (by default) XML
###
<?xml version="1.0"?>
<mysqldump xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<database name="database">
</database>
</mysqldump>
#####
# mysqldump with --copy-s3-tables=1
###
/*!40101 SET @saved_cs_client = @@character_set_client */;
/*!40101 SET character_set_client = utf8 */;
CREATE TABLE `t1` (
`pk` int(11) NOT NULL,
`a` int(11) DEFAULT NULL,
PRIMARY KEY (`pk`)
) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1;
/*!40101 SET character_set_client = @saved_cs_client */;
INSERT INTO `t1` VALUES (1,1),(2,2),(3,3),(4,4);
ATER TABLE `t1` ENGINE=S3;
#####
# mysqldump with --copy-s3-tables=1 XML
###
<?xml version="1.0"?>
<mysqldump xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<database name="database">
<table_structure name="t1">
<field Field="pk" Type="int(11)" Null="NO" Key="PRI" Extra="" Comment="" />
<field Field="a" Type="int(11)" Null="YES" Key="" Default="NULL" Extra="" Comment="" />
<key Table="t1" Non_unique="0" Key_name="PRIMARY" Seq_in_index="1" Column_name="pk" Collation="A" Cardinality="4" Null="" Index_type="BTREE" Comment="" Index_comment="" />
<options Name="t1" Engine="Aria" Version="10" Row_format="Page" Rows="4" Avg_row_length="4096" Data_length="16384" Max_data_length="17592186011648" Index_length="16384" Data_free="0" Create_time="--TIME--" Collation="latin1_swedish_ci" Create_options="" Comment="" Max_index_length="9007199254732800" Temporary="N" />
</table_structure>
<table_data name="t1">
<row>
<field name="pk">1</field>
<field name="a">1</field>
</row>
<row>
<field name="pk">2</field>
<field name="a">2</field>
</row>
<row>
<field name="pk">3</field>
<field name="a">3</field>
</row>
<row>
<field name="pk">4</field>
<field name="a">4</field>
</row>
</table_data>
</database>
</mysqldump>
drop table t1;