Do not use DELETE queries with db_query(), use db_delete() instead.
Do not use t() in hook_schema(), this will only generate overhead for translators.
Comments.
A comma should follow the last multiline array item.
Constants.
Variables is camel caps format. Do not use mixed case (camelCase), use lower case and _.
A comma should follow the last multiline array item. Found: $lmi_payer_purse.
A comma should follow the last multiline array item. Found: 'desc'.
A comma should follow the last multiline array item. Found: ).
A comma should follow the last multiline array item. Found: $wmtype.