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TableSchema

Struct TableSchema 

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pub struct TableSchema {
    pub name: String,
    pub root_page: i32,
    pub columns: Vec<ColumnInfo>,
    pub indexes: Vec<IndexSchema>,
    pub strict: bool,
    pub without_rowid: bool,
    pub primary_key_constraints: Vec<Vec<String>>,
    pub foreign_keys: Vec<FkDef>,
    pub check_constraints: Vec<CheckConstraint>,
}
Expand description

Minimal table schema needed by the code generator.

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§name: String

Table name.

§root_page: i32

Root page of the table’s B-tree.

§columns: Vec<ColumnInfo>

Column definitions in storage order.

§indexes: Vec<IndexSchema>

Available indexes.

§strict: bool

Whether this table uses SQLite STRICT typing rules.

§without_rowid: bool

Whether this table is declared WITHOUT ROWID.

§primary_key_constraints: Vec<Vec<String>>

PRIMARY KEY constraints expressed as ordered column-name groups.

INTEGER PRIMARY KEY rowid aliases continue to use ColumnInfo::is_ipk; this field preserves non-rowid and composite PRIMARY KEY shape for SQL re-rendering during ALTER TABLE / persistence round-trips.

§foreign_keys: Vec<FkDef>

Foreign key constraints declared on this table (child side).

§check_constraints: Vec<CheckConstraint>

CHECK constraints with durable column-vs-table ownership.

Implementations§

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impl TableSchema

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pub fn affinity_string(&self) -> String

Build an affinity string for MakeRecord (one char per column). IPK columns are marked with ‘X’ so MakeRecord writes a NULL placeholder while the real key continues to come from the rowid.

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pub fn column_index(&self, name: &str) -> Option<usize>

Find a column’s 0-based index by name (case-insensitive).

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pub fn index_for_column(&self, col_name: &str) -> Option<&IndexSchema>

Find an index by a column name (returns first index whose leftmost column matches).

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pub fn single_column_index_for_column_with_collation( &self, col_name: &str, comparison_collation: Option<&str>, ) -> Option<&IndexSchema>

Find a single-column direct-lookup index for col_name whose comparison collation matches the join predicate.

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pub fn unique_single_column_index_for_column( &self, col_name: &str, comparison_collation: Option<&str>, ) -> Option<&IndexSchema>

Find a direct-lookup UNIQUE index that guarantees at most one row for an equality probe on col_name and whose comparison collation matches the join predicate.

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pub fn strict_type_pattern(&self) -> Option<String>

STRICT type-check pattern for Opcode::TypeCheck (I,R,T,L,A).

Trait Implementations§

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impl Clone for TableSchema

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fn clone(&self) -> TableSchema

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for TableSchema

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

Formats the value using the given formatter. Read more
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impl Eq for TableSchema

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impl PartialEq for TableSchema

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fn eq(&self, other: &TableSchema) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for TableSchema

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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