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ColumnInfo

Struct ColumnInfo 

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pub struct ColumnInfo {
    pub name: String,
    pub affinity: char,
    pub is_ipk: bool,
    pub type_name: Option<String>,
    pub notnull: bool,
    pub unique: bool,
    pub default_value: Option<String>,
    pub strict_type: Option<StrictColumnType>,
    pub generated_expr: Option<String>,
    pub generated_stored: Option<bool>,
    pub collation: Option<String>,
    pub conflict_action: Option<ConflictAction>,
}
Expand description

Column metadata needed by the code generator.

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§name: String

Column name.

§affinity: char

Type affinity character: ‘D’/‘d’ (integer), ‘E’/‘e’ (real), ‘B’ (text), ‘C’ (numeric), ‘A’ or other (blob/none).

§is_ipk: bool

True if this column is the INTEGER PRIMARY KEY (rowid alias). Column reads for IPK columns must emit Rowid instead of Column because the value is stored as the B-tree key, not in the data record.

§type_name: Option<String>

Type name as written in the CREATE TABLE statement (e.g. “TEXT”, “INTEGER”).

§notnull: bool

True if the column has a NOT NULL constraint.

§unique: bool

True if the column has a UNIQUE constraint.

§default_value: Option<String>

Default value expression as SQL text (e.g. “‘open’”, “0”, “CURRENT_TIMESTAMP”).

§strict_type: Option<StrictColumnType>

Strict type for STRICT tables; None for non-STRICT tables.

§generated_expr: Option<String>

Generated column expression as SQL text, if this is a generated column.

§generated_stored: Option<bool>

Whether the generated column is STORED (true) or VIRTUAL (false). None for non-generated columns.

§collation: Option<String>

Column collation sequence name (e.g. “NOCASE”, “BINARY”, “RTRIM”). None means the default (BINARY).

§conflict_action: Option<ConflictAction>

Conflict-resolution algorithm declared on this column’s NOT NULL or (INTEGER PRIMARY KEY) constraint via ON CONFLICT <algo>. None means the default (ABORT). UNIQUE-constraint conflict actions live on the corresponding IndexSchema::conflict_action instead.

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impl ColumnInfo

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pub fn basic(name: impl Into<String>, affinity: char, is_ipk: bool) -> Self

Create a basic ColumnInfo without type/notnull/default metadata.

Trait Implementations§

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impl Clone for ColumnInfo

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fn clone(&self) -> ColumnInfo

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 ColumnInfo

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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 ColumnInfo

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impl PartialEq for ColumnInfo

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fn eq(&self, other: &ColumnInfo) -> 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 ColumnInfo

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impl<T> Any for T
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Gets the TypeId of self. Read more
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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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fn equivalent(&self, key: &K) -> bool

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