Enum SpannerAlterTable 

pub enum SpannerAlterTable {
    AddColumn {
        table: String,
        column: SpannerColumn,
    },
    DropColumn {
        table: String,
        column: String,
    },
    AlterColumn {
        table: String,
        column: String,
        new_type: Option<String>,
        set_not_null: Option<bool>,
        set_default: Option<String>,
        drop_default: bool,
    },
    AddForeignKey {
        table: String,
        constraint_name: String,
        columns: Vec<String>,
        ref_table: String,
        ref_columns: Vec<String>,
        on_delete: Option<String>,
    },
    DropConstraint {
        table: String,
        constraint_name: String,
    },
}

Builder for ALTER TABLE statements in Spanner DDL format

Variants

AddColumn

Fields

table: String

column: SpannerColumn

DropColumn

Fields

table: String

column: String

AlterColumn

Fields

table: String

column: String

new_type: Option<String>

set_not_null: Option<bool>

set_default: Option<String>

drop_default: bool

AddForeignKey

Fields

table: String

constraint_name: String

columns: Vec<String>

ref_table: String

ref_columns: Vec<String>

on_delete: Option<String>

DropConstraint

Fields

table: String

constraint_name: String

Implementations

impl SpannerAlterTable

pub fn add_column<T: Into<String>, N: Into<String>, S: Into<String>>( table: T, name: N, spanner_type: S, not_null: bool, ) -> Self

pub fn drop_column<T: Into<String>, N: Into<String>>( table: T, column: N, ) -> Self

pub fn build(self) -> String

Trait Implementations

impl Clone for SpannerAlterTable

fn clone(&self) -> SpannerAlterTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpannerAlterTable

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

Formats the value using the given formatter.