LOCALLY-ENABLE-SQL-READER-SYNTAX — Globally enable square bracket reader syntax.
Macro
Turns on the SQL reader syntax without changing the syntax
      state such that 
      restore-sql-reader-syntax-state will
      re-establish the current syntax state.
      
Intended to be used in a file for code which uses the square bracket syntax without changing the global state.
        #.(locally-enable-sql-reader-syntax) 
        
        ... CODE USING SYMBOLIC SQL SYNTAX ... 
        
        #.(restore-sql-reader-syntax-state)