[BUG] JSQLParser 5.1-SNAPSHOT : PostgreSQL : Fail to parse "COLLATE" in Order By clause #2245

Always check against the Latest SNAPSHOT of JSQLParser and the Syntax Diagram

Failing SQL Feature:

• Brief description of the failing SQL feature
• Example: WITH ROLLUP can't be parsed

"COLLATE" cannot be parsed when used in the Order By clause of a query. For example:
SELECT * FROM a ORDER BY CAST(a.xyz AS TEXT) COLLATE "und-x-icu" ASC NULLS FIRST
produces:
Encountered unexpected token: "COLLATE" "COLLATE" at line 1, column 46. Was expecting one of: <EOF> <ST_SEMICOLON>

SQL Example:

• Simplified Query Example, focusing on the failing feature

  select *
  from a
  order by cast(a.xyz as text) collate "und-x-icu" asc nulls first

Software Information:

• JSqlParser version 5.1
• Postgres 17

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