Method expectLong

core/src/main/java/io/questdb/griffin/SqlParser.java:754–769

(GenericLexer lexer)

    }

    private long expectLong(GenericLexer lexer) throws SqlException {
        CharSequence tok = tok(lexer, "long integer");
        boolean negative;
        if (Chars.equals(tok, '-')) {
            negative = true;
            tok = tok(lexer, "long integer");
        } else {
            negative = false;
        }
        try {
            long result = Numbers.parseLong(tok);
            return negative ? -result : result;
        } catch (NumericException e) {
            throw err(lexer, tok, "bad long integer");
        }
    }

    private void expectObservation(GenericLexer lexer) throws SqlException {
        if (isObservationKeyword(tok(lexer, "'observation'"))) {