Trait DdlExecutor 

pub trait DdlExecutor {
    // Required methods
    fn create_table(
        &mut self,
        name: &str,
        fields: &[(&str, DataType)],
        primary_key: Option<usize>,
    ) -> Result<()>;
    fn create_index(
        &mut self,
        table_name: &str,
        field_name: &str,
        index_type: IndexType,
    ) -> Result<()>;
}

DDL执行器trait，定义创建表和索引的方法

Required Methods

fn create_table( &mut self, name: &str, fields: &[(&str, DataType)], primary_key: Option<usize>, ) -> Result<()>

创建表

fn create_index( &mut self, table_name: &str, field_name: &str, index_type: IndexType, ) -> Result<()>

创建索引

Implementors

impl DdlExecutor for RemDb

为RemDb实现DdlExecutor trait