Function defaultForColumn

drizzle-kit/src/serializer/gelSerializer.ts:1537–1592

(column: any, internals: GelKitInternals, tableName: string)

};

const defaultForColumn = (column: any, internals: GelKitInternals, tableName: string) => {
	const columnName = column.column_name;
	const isArray = internals?.tables[tableName]?.columns[columnName]?.isArray ?? false;

	if (column.column_default === null || column.column_default === undefined) return undefined;

	if (column.column_default.endsWith('[]')) {
		column.column_default = column.column_default.slice(0, -2);
	}

	column.column_default = column.column_default.replace(/::(.*?)(?<![^\w"])(?=$)/, '');

	const columnDefaultAsString: string = column.column_default.toString();

	if (isArray) {
		return columnDefaultAsString;
	}

	if (['integer', 'smallint', 'bigint', 'double precision', 'real'].includes(column.data_type)) {
		if (/^-?[\d.]+(?:e-?\d+)?$/.test(columnDefaultAsString)) {
			return Number(columnDefaultAsString);
		} else {
			if (typeof internals!.tables![tableName] === 'undefined') {
				internals!.tables![tableName] = {
					columns: {
						[columnName]: {
							isDefaultAnExpression: true,
						},
					},
				};
			} else {
				if (typeof internals!.tables![tableName]!.columns[columnName] === 'undefined') {
					internals!.tables![tableName]!.columns[columnName] = {
						isDefaultAnExpression: true,
					};
				} else {
					internals!.tables![tableName]!.columns[columnName]!.isDefaultAnExpression = true;
				}
			}
			return columnDefaultAsString;
		}
	} else if (column.data_type.includes('numeric')) {
		// if numeric(1,1) and used '99' -> psql stores like '99'::numeric
		return columnDefaultAsString.includes("'") ? columnDefaultAsString : `'${columnDefaultAsString}'`;
	} else if (column.data_type === 'json' || column.data_type === 'jsonb') {
		return `'${columnDefaultAsString}'`;
	} else if (column.data_type === 'boolean') {
		return column.column_default === 'true';
	} else if (columnDefaultAsString === 'NULL') {
		return `NULL`;
	} else if (columnDefaultAsString.startsWith("'") && columnDefaultAsString.endsWith("'")) {
		return columnDefaultAsString;
	} else {
		return `${columnDefaultAsString.replace(/\\/g, '`\\')}`;
	}
};

const getColumnsInfoQuery = ({ schema, table, db }: { schema: string; table: string; db: DB }) => {