Struct SchemaCache 

pub struct SchemaCache {
    pub tables: TablesMap,
    pub relationships: RelationshipsMap,
    pub routines: RoutineMap,
    pub timezones: HashSet<String>,
    pub pg_version: i32,
}

Cached PostgreSQL schema metadata.

Fields

tables: TablesMap

Tables and views by qualified identifier.

relationships: RelationshipsMap

Relationships between tables.

routines: RoutineMap

Stored functions/procedures.

timezones: HashSet<String>

Valid timezone names.

pg_version: i32

PostgreSQL version.

Implementations

impl SchemaCache

pub async fn load(pool: &PgPool, schemas: &[String]) -> Result<Self>

Load schema cache from the database.

pub fn get_table(&self, qi: &QualifiedIdentifier) -> Option<&Table>

Get a table by qualified identifier.

pub fn require_table(&self, qi: &QualifiedIdentifier) -> Result<&Table>

Get a table, returning an error if not found.

pub fn get_relationships( &self, qi: &QualifiedIdentifier, schema: &str, ) -> Option<&Vec<Relationship>>

Get relationships for a table.

pub fn get_routines(&self, qi: &QualifiedIdentifier) -> Option<&Vec<Routine>>

Get a routine by qualified identifier.

pub fn is_valid_timezone(&self, tz: &str) -> bool

Check if a timezone is valid.

pub fn summary(&self) -> String

Get a summary of the cached schema.

pub fn find_relationship( &self, from: &QualifiedIdentifier, to_name: &str, schema: &str, ) -> Option<&Relationship>

Find a relationship between two tables by name.

Trait Implementations

impl Clone for SchemaCache

fn clone(&self) -> SchemaCache

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for SchemaCache

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.