Struct Row 

pub struct Row { /* private fields */ }

A single row returned by a catalog query, keyed by column name.

Implementations

impl Row

pub const fn new() -> Self

Construct an empty row.

pub fn with(self, key: impl Into<String>, value: Value) -> Self

Insert a column.

pub fn insert(&mut self, key: impl Into<String>, value: Value)

Insert a column in place.

pub fn get_value( &self, query: CatalogQuery, key: &str, ) -> Result<&Value, CatalogError>

Borrow a column value by name.

pub fn is_null(&self, key: &str) -> bool

Whether the column is absent or NULL.

pub fn get_int( &self, query: CatalogQuery, key: &str, ) -> Result<i64, CatalogError>

Read a non-null integer column (any width).

pub fn get_opt_int( &self, query: CatalogQuery, key: &str, ) -> Result<Option<i64>, CatalogError>

Read an optional integer column.

pub fn get_text( &self, query: CatalogQuery, key: &str, ) -> Result<String, CatalogError>

Read a non-null text column.

pub fn get_opt_text( &self, query: CatalogQuery, key: &str, ) -> Result<Option<String>, CatalogError>

Read an optional text column.

pub fn get_bool( &self, query: CatalogQuery, key: &str, ) -> Result<bool, CatalogError>

Read a non-null bool column.

pub fn get_char( &self, query: CatalogQuery, key: &str, ) -> Result<char, CatalogError>

Read a non-null char column (e.g., pg_constraint.contype).

pub fn get_int_array( &self, query: CatalogQuery, key: &str, ) -> Result<Vec<i64>, CatalogError>

Read a non-null int2[]/int4[]/int8[] column.

pub fn get_text_array( &self, query: CatalogQuery, key: &str, ) -> Result<Vec<String>, CatalogError>

Read a non-null text[]/name[] column.

Trait Implementations

impl Clone for Row

fn clone(&self) -> Row

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Row

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

Formats the value using the given formatter.

impl Default for Row

fn default() -> Row

Returns the “default value” for a type.