Method getPos

core/src/main/java/org/apache/calcite/rex/RexUtil.java:2384–2389

If the RexNode contains position information, return it. Otherwise, return SqlParserPos.ZERO.

(RexNode e)

  /** If the RexNode contains position information, return it.
   * Otherwise, return SqlParserPos.ZERO. */
  public static SqlParserPos getPos(RexNode e) {
    if (e instanceof RexCall) {
      return ((RexCall) e).getParserPosition();
    }
    return SqlParserPos.ZERO;
  }

  /** Applies NOT to an expression.
   *