接口的使用
org.apache.shardingsphere.sql.parser.sql.segment.ddl.AlterDefinitionSegment

使用AlterDefinitionSegment的程序包

程序包	说明
org.apache.shardingsphere.sql.parser.sql.segment.ddl.column.alter
org.apache.shardingsphere.sql.parser.sql.segment.ddl.constraint

org.apache.shardingsphere.sql.parser.sql.segment.ddl.column.alter中AlterDefinitionSegment的使用

实现AlterDefinitionSegment的org.apache.shardingsphere.sql.parser.sql.segment.ddl.column.alter中的类

限定符和类型	类和说明
class	AddColumnDefinitionSegment Add column definition segment.
class	DropColumnDefinitionSegment Drop column definition segment.
class	ModifyColumnDefinitionSegment Modify column definition segment.

org.apache.shardingsphere.sql.parser.sql.segment.ddl.constraint中AlterDefinitionSegment的使用

实现AlterDefinitionSegment的org.apache.shardingsphere.sql.parser.sql.segment.ddl.constraint中的类

限定符和类型	类和说明
class	ConstraintDefinitionSegment Constraint definition segment.