export type SqlCreateTableColumnConstraint = {
    contype: string | null;
};
export type SqlCreateTableColumn = {
    name: string;
    location: number | null;
    constraints: SqlCreateTableColumnConstraint[];
    isPrimaryKey: boolean;
    defaultFunction: string | null;
    /** Function name of a CONSTR_GENERATED expression (e.g. `uuid_extract_timestamp`), null if not generated or unrecognized. */
    generatedFunction: string | null;
    /** Lowercased argument column names of a CONSTR_GENERATED expression's function call (e.g. `['id']`). */
    generatedFunctionArgColumns: string[];
};
export type SqlCreateTableMetadata = {
    tableName: string;
    columns: SqlCreateTableColumn[];
};
/**
 * A column is a primary key via either the inline `col TYPE PRIMARY KEY` constraint
 * (nested inside its ColumnDef) or the table-level `PRIMARY KEY (col)` constraint
 * (a bare `Constraint` sibling in tableElts, referencing the column by name in `keys`).
 * Both forms are checked so table-level-PK migrations aren't silently mis-detected.
 */
export declare function extractCreateTableMetadata(content: string): SqlCreateTableMetadata[];