plan: types in lowecase on SHOW CREATE TABLE

[mcuadros]

Signed-off-by: Máximo Cuadros mcuadros@gmail.com

As seen in MySQL the types in a SHOW CREATE TABLE result should be written lowercase.
This is a requirement to make work properly SQLAlchemey, you can test the current issues with this small script:

import sqlalchemy
from sqlalchemy import inspect

engine = sqlalchemy.create_engine('mysql+pymysql://root:@127.0.0.1:3306/mydb')
with engine.connect() as conn:
    inspector = inspect(engine)

    cols = inspector.get_columns("commits", "gitbase")

Result:

✗ gitbase (master) ✗ python foo.py
/usr/lib/python3.7/site-packages/sqlalchemy/dialects/mysql/reflection.py:193: SAWarning: Did not recognize type 'TEXT' of column 'repository_id'
  "Did not recognize type '%s' of column '%s'" % (type_, name)
/usr/lib/python3.7/site-packages/sqlalchemy/dialects/mysql/reflection.py:193: SAWarning: Did not recognize type 'TEXT' of column 'commit_hash'
  "Did not recognize type '%s' of column '%s'" % (type_, name)
/usr/lib/python3.7/site-packages/sqlalchemy/dialects/mysql/reflection.py:193: SAWarning: Did not recognize type 'TEXT' of column 'commit_author_name'
  "Did not recognize type '%s' of column '%s'" % (type_, name)
/usr/lib/python3.7/site-packages/sqlalchemy/dialects/mysql/reflection.py:193: SAWarning: Did not recognize type 'TEXT' of column 'commit_author_email'
  "Did not recognize type '%s' of column '%s'" % (type_, name)
/usr/lib/python3.7/site-packages/sqlalchemy/dialects/mysql/reflection.py:193: SAWarning: Did not recognize type 'TIMESTAMP' of column 'commit_author_when'
  "Did not recognize type '%s' of column '%s'" % (type_, name)
/usr/lib/python3.7/site-packages/sqlalchemy/dialects/mysql/reflection.py:193: SAWarning: Did not recognize type 'TEXT' of column 'committer_name'
  "Did not recognize type '%s' of column '%s'" % (type_, name)
/usr/lib/python3.7/site-packages/sqlalchemy/dialects/mysql/reflection.py:193: SAWarning: Did not recognize type 'TEXT' of column 'committer_email'
  "Did not recognize type '%s' of column '%s'" % (type_, name)

How looks like a SHOW CREATE TABLE in MySQL

| wp_links | CREATE TABLE `wp_links` (
  `link_id` bigint(20) unsigned NOT NULL AUTO_INCREMENT,
  `link_url` varchar(255) COLLATE utf8mb4_unicode_520_ci NOT NULL DEFAULT '',
  `link_name` varchar(255) COLLATE utf8mb4_unicode_520_ci NOT NULL DEFAULT '',
  `link_image` varchar(255) COLLATE utf8mb4_unicode_520_ci NOT NULL DEFAULT '',
  `link_target` varchar(25) COLLATE utf8mb4_unicode_520_ci NOT NULL DEFAULT '',
  `link_description` varchar(255) COLLATE utf8mb4_unicode_520_ci NOT NULL DEFAULT '',
  `link_visible` varchar(20) COLLATE utf8mb4_unicode_520_ci NOT NULL DEFAULT 'Y',
  `link_owner` bigint(20) unsigned NOT NULL DEFAULT '1',
  `link_rating` int(11) NOT NULL DEFAULT '0',
  `link_updated` datetime NOT NULL DEFAULT '0000-00-00 00:00:00',
  `link_rel` varchar(255) COLLATE utf8mb4_unicode_520_ci NOT NULL DEFAULT '',
  `link_notes` mediumtext COLLATE utf8mb4_unicode_520_ci NOT NULL,
  `link_rss` varchar(255) COLLATE utf8mb4_unicode_520_ci NOT NULL DEFAULT '',
  PRIMARY KEY (`link_id`),
  KEY `link_visible` (`link_visible`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_520_ci |````

[erizocosmico]

@ajnavarro shall we merge this?