Struct IntrospectionExecutor 

pub struct IntrospectionExecutor<'a> { /* private fields */ }

Executor for database introspection commands

Implementations

impl<'a> IntrospectionExecutor<'a>

pub fn new(db: &'a Database) -> Self

Create a new introspection executor

pub fn execute_show_tables( &self, stmt: &ShowTablesStmt, ) -> Result<SelectResult, ExecutorError>

Execute SHOW TABLES statement

Returns a result set with a single column “Tables_in_” containing the names of all tables in the specified (or current) schema.

pub fn execute_show_databases( &self, stmt: &ShowDatabasesStmt, ) -> Result<SelectResult, ExecutorError>

Execute SHOW DATABASES statement

Returns a result set with a single column “Database” containing the names of all schemas (databases) in the catalog.

pub fn execute_show_columns( &self, stmt: &ShowColumnsStmt, ) -> Result<SelectResult, ExecutorError>

Execute SHOW COLUMNS statement

Returns a result set with columns: Field, Type, Null, Key, Default, Extra

pub fn execute_describe( &self, stmt: &DescribeStmt, ) -> Result<SelectResult, ExecutorError>

Execute DESCRIBE statement (alias for SHOW COLUMNS)

pub fn execute_show_index( &self, stmt: &ShowIndexStmt, ) -> Result<SelectResult, ExecutorError>

Execute SHOW INDEX statement

Returns a result set with index information in MySQL format.

pub fn execute_show_create_table( &self, stmt: &ShowCreateTableStmt, ) -> Result<SelectResult, ExecutorError>

Execute SHOW CREATE TABLE statement

Returns a result set with columns: Table, Create Table