In PostgreSQL the LIKE operators are stored as "double tilde" binary operators:
LIKE:~~ILIKE:~~*NOT LIKE:!~~andNOT ILIKE:!~~*
All of these operators are PostgreSQL-specific
Source: https://stackoverflow.com/a/21926044 See also: http://www.postgresql.org/docs/current/interactive/functions-matching.html#FUNCTIONS-LIKE