/**
 * Column Builder
 * Handles column definition generation and data type utilities
 */
import type { IColumnInfo } from '../../../database/introspection';
import type { IColumnDefinition } from '../../../types';
export declare class ColumnBuilder {
    /**
     * Convert introspection column data to column definition
     */
    convertToColumnDefinition(column: IColumnInfo): IColumnDefinition;
    /**
     * Generate column definition SQL
     */
    generateColumnDefinition(column: IColumnDefinition): string;
    /**
     * Generate data type string for column
     */
    private generateDataType;
    /**
     * Check if a default value is a "default default" that should be omitted
     */
    private isDefaultDefaultValue;
    /**
     * Check if a character length is a default that should be omitted
     */
    private isDefaultLength;
    /**
     * Check if numeric precision/scale are defaults that should be omitted
     */
    private isDefaultNumericPrecision;
    /**
     * Escape identifier for SQL
     */
    private escapeIdentifier;
}
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