feat(operators): use global symbol registry

lib/operators.js

@@ -43,43 +43,43 @@
  * @property join
  */
 const Op = {
-  eq: Symbol('eq'),
-  ne: Symbol('ne'),
-  gte: Symbol('gte'),
-  gt: Symbol('gt'),
-  lte: Symbol('lte'),
-  lt: Symbol('lt'),
-  not: Symbol('not'),
-  is: Symbol('is'),
-  in: Symbol('in'),
-  notIn: Symbol('notIn'),
-  like: Symbol('like'),
-  notLike: Symbol('notLike'),
-  iLike: Symbol('iLike'),
-  notILike: Symbol('notILike'),
-  regexp: Symbol('regexp'),
-  notRegexp: Symbol('notRegexp'),
-  iRegexp: Symbol('iRegexp'),
-  notIRegexp: Symbol('notIRegexp'),
-  between: Symbol('between'),
-  notBetween: Symbol('notBetween'),
-  overlap: Symbol('overlap'),
-  contains: Symbol('contains'),
-  contained: Symbol('contained'),
-  adjacent: Symbol('adjacent'),
-  strictLeft: Symbol('strictLeft'),
-  strictRight: Symbol('strictRight'),
-  noExtendRight: Symbol('noExtendRight'),
-  noExtendLeft: Symbol('noExtendLeft'),
-  and: Symbol('and'),
-  or: Symbol('or'),
-  any: Symbol('any'),
-  all: Symbol('all'),
-  values: Symbol('values'),
-  col: Symbol('col'),
-  placeholder: Symbol('placeholder'),
-  join: Symbol('join'),
-  raw: Symbol('raw') //deprecated remove by v5.0
+  eq: Symbol.for('eq'),
+  ne: Symbol.for('ne'),
+  gte: Symbol.for('gte'),
+  gt: Symbol.for('gt'),
+  lte: Symbol.for('lte'),
+  lt: Symbol.for('lt'),
+  not: Symbol.for('not'),
+  is: Symbol.for('is'),
+  in: Symbol.for('in'),
+  notIn: Symbol.for('notIn'),
+  like: Symbol.for('like'),
+  notLike: Symbol.for('notLike'),
+  iLike: Symbol.for('iLike'),
+  notILike: Symbol.for('notILike'),
+  regexp: Symbol.for('regexp'),
+  notRegexp: Symbol.for('notRegexp'),
+  iRegexp: Symbol.for('iRegexp'),
+  notIRegexp: Symbol.for('notIRegexp'),
+  between: Symbol.for('between'),
+  notBetween: Symbol.for('notBetween'),
+  overlap: Symbol.for('overlap'),
+  contains: Symbol.for('contains'),
+  contained: Symbol.for('contained'),
+  adjacent: Symbol.for('adjacent'),
+  strictLeft: Symbol.for('strictLeft'),
+  strictRight: Symbol.for('strictRight'),
+  noExtendRight: Symbol.for('noExtendRight'),
+  noExtendLeft: Symbol.for('noExtendLeft'),
+  and: Symbol.for('and'),
+  or: Symbol.for('or'),
+  any: Symbol.for('any'),
+  all: Symbol.for('all'),
+  values: Symbol.for('values'),
+  col: Symbol.for('col'),
+  placeholder: Symbol.for('placeholder'),
+  join: Symbol.for('join'),
+  raw: Symbol.for('raw') //deprecated remove by v5.0
 };
 
 const Aliases = {