revert: tweak reaction_type column type for mysql

store/migration/mysql/dev/LATEST.sql

@@ -127,6 +127,6 @@ CREATE TABLE `reaction` (
   `created_ts` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
   `creator_id` INT NOT NULL,
   `content_id` VARCHAR(256) NOT NULL,
-  `reaction_type` TINYTEXT NOT NULL,
+  `reaction_type` VARCHAR(256) NOT NULL,
   UNIQUE(`creator_id`,`content_id`,`reaction_type`)  
 );

store/migration/mysql/prod/0.23/00__reactions.sql

--- modify reaction_type to be a TINYTEXT instead of varchar(256).
-ALTER TABLE `reaction` MODIFY `reaction_type` TINYTEXT NOT NULL;
-
--- update reaction_type to emoji.
 UPDATE `reaction` SET `reaction_type` = '👍' WHERE `reaction_type` = 'THUMBS_UP';
 UPDATE `reaction` SET `reaction_type` = '👎' WHERE `reaction_type` = 'THUMBS_DOWN';
 UPDATE `reaction` SET `reaction_type` = '💛' WHERE `reaction_type` = 'HEART';

store/migration/mysql/prod/LATEST.sql

@@ -127,6 +127,6 @@ CREATE TABLE `reaction` (
   `created_ts` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP,
   `creator_id` INT NOT NULL,
   `content_id` VARCHAR(256) NOT NULL,
-  `reaction_type` TINYTEXT NOT NULL,
+  `reaction_type` VARCHAR(256) NOT NULL,
   UNIQUE(`creator_id`,`content_id`,`reaction_type`)  
 );