string compileDropIfExists(Blueprint $blueprint,

string compilePrimary(Blueprint $blueprint,

array compileRenameColumn(Blueprint $blueprint,

string columnize(array $columns) Convert an array of column names into

string compileColumnExists(string $table) Compile the query to determine

string compileCreate(Blueprint $blueprint,

string compileRename(Blueprint $blueprint,

bool isExpression(mixed $value) Determine if the given value is a raw expression

string compileColumnExists(string $table) Compile the query to determine