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This feature adds the functionality of ignorability for indexes. Indexes are not ignored be default. To control index ignorability explicitly for a new index, use IGNORE or NOT IGNORE as part of the index definition for CREATE TABLE, CREATE INDEX, or ALTER TABLE. Primary keys (explicit or implicit) cannot be made ignorable. The table INFORMATION_SCHEMA.STATISTICS get a new column named IGNORED that would store whether an index needs to be ignored or not.
61 lines
2.0 KiB
Plaintext
61 lines
2.0 KiB
Plaintext
create table t1 (pk int primary key, a int);
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insert into t1 values (1,1),(2,2),(3,3),(4,4);
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alter table t1 engine=S3;
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#####
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# mysqldump with --copy-s3-tables=0 (by default)
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###
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#####
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# mysqldump with --copy-s3-tables=0 (by default) XML
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###
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<?xml version="1.0"?>
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<mysqldump xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
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<database name="database">
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</database>
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</mysqldump>
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#####
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# mysqldump with --copy-s3-tables=1
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###
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/*!40101 SET @saved_cs_client = @@character_set_client */;
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/*!40101 SET character_set_client = utf8 */;
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CREATE TABLE `t1` (
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`pk` int(11) NOT NULL,
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`a` int(11) DEFAULT NULL,
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PRIMARY KEY (`pk`)
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) ENGINE=Aria DEFAULT CHARSET=latin1 PAGE_CHECKSUM=1;
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/*!40101 SET character_set_client = @saved_cs_client */;
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INSERT INTO `t1` VALUES (1,1),(2,2),(3,3),(4,4);
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ATER TABLE `t1` ENGINE=S3;
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#####
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# mysqldump with --copy-s3-tables=1 XML
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###
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<?xml version="1.0"?>
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<mysqldump xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
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<database name="database">
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<table_structure name="t1">
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<field Field="pk" Type="int(11)" Null="NO" Key="PRI" Extra="" Comment="" />
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<field Field="a" Type="int(11)" Null="YES" Key="" Default="NULL" Extra="" Comment="" />
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<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="" Ignored="NO" />
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<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" />
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</table_structure>
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<table_data name="t1">
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<row>
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<field name="pk">1</field>
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<field name="a">1</field>
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</row>
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<row>
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<field name="pk">2</field>
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<field name="a">2</field>
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</row>
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<row>
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<field name="pk">3</field>
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<field name="a">3</field>
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</row>
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<row>
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<field name="pk">4</field>
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<field name="a">4</field>
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</row>
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</table_data>
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</database>
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</mysqldump>
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drop table t1;
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