fix: quote index when creating table

[black-06]

• Do only one thing
• Non breaking API changes
• Tested

What did this pull request do?

quote index when creating table, just like CreateIndex

User Case Description

before

CREATE TABLE `quoted_index_structs` (
	`id` BIGINT UNSIGNED AUTO_INCREMENT,
	`name` VARCHAR ( 255 ),
	PRIMARY KEY ( `id` ),
  INDEX AS ( `name` ) 
)

after

CREATE TABLE `quoted_index_structs` (
	`id` BIGINT UNSIGNED AUTO_INCREMENT,
	`name` VARCHAR ( 255 ),
	PRIMARY KEY ( `id` ),
  INDEX `AS` ( `name` ) 
)