Add filtering support to increment/decrement
Normalize isInsertQuery and isUpdateQuery
Fix typo in method name
return this from set
Merge pull request #1617 from seegno/refactor-pg-query

Normalize isInsertQuery and isUpdateQuery
Merge pull request #1618 from seegno/fix-typo

Fix typo in method name
Merge pull request #1616 from seegno/add-increment-where

Add filtering support to increment/decrement
Add customizable nullable message