Add sql-mode config

Also use sql-upcase mode to auto-upcase sql keywords and functions.
Makes life easy especially since I have mapped by caps to control and
hence have to hold down shift to type upcase letters which is a pain.

config/sql-config.el

@@ -0,0 +1,15 @@
+;; Capitalize keywords in SQL mode
+(add-hook 'sql-mode-hook 'sqlup-mode)
+;; Capitalize keywords in an interactive session (e.g. psql)
+(add-hook 'sql-interactive-mode-hook 'sqlup-mode)
+
+; Mode to upcase SQL keyword and functions
+(use-package sqlup-mode
+  :config
+  ;; Blacklist some words - prevent them from auto-upcase
+  ;; (eg. most commonly used `name` as column-name)
+  (add-to-list 'sqlup-blacklist "name"))
+
+(diminish 'sql-mode "sql")
+
+(provide 'sql-config)

init.el

@@ -42,6 +42,7 @@
 (require 'sh-config)
 (require 'smartparens-config)
 (require 'sml-config)
+(require 'sql-config)
 (require 'super-save-config)
 (require 'theme-font-config)
 (require 'uniquify-config)