Failing SQL Feature:

• Using a function with more than one parameter, where the second parameter includes schema.table.column, with an addition to an Interval, can't be parsed. However, if the same parameter is used as a singular parameter, or the same multi-parameter function is used without schema, the SQL can be parsed.

SQL Example:

• Simplified Query Example, focusing on the failing feature

SELECT
  DATE_TRUNC(
  'week',
    (
      "schema"."tbl"."column" + INTERVAL '1 day'
    )
  )
FROM
"schema"."tbl";

Note that:

SELECT
DATE_TRUNC(
'week',
  (
    "tbl"."column" + INTERVAL '1 day'
  )
)
FROM
"schema"."tbl";

and

SELECT
  FUNC(
    (
      "schema"."tbl"."column" + INTERVAL '1 day'
    )
  )
FROM
"schema"."tbl";

both work

Software Information:

• JSqlParser 5.4-Snapshot (f10b52e)
• PostgreSQL